French hunt 2nd fugitive, launch new airstrikes on ISIS

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Authorities Seek 2nd Fugitive in Paris Attacks

PARIS (AP) -- French police are hunting for a second fugitive directly involved in the deadly Paris attacks, officials said Tuesday, as France made an unprecedented demand that its European Union allies support its military action against the Islamic State group.

The disclosure of a second possible fugitive, whom authorities said they hadn't identified, came as French and Russian warplanes pounded the jihadi group's self-declared capital in Syria. President Vladimir Putin ordered a Russian military cruiser to work with France on fighting the militants in Syria and U.S. Secretary of State John Kerry hinted at a possible Syrian cease-fire so the world could focus on crushing IS.

See the aftermath of the attacks in Paris and around the world:

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Paris terror attack memorials, aftermath, world reaction
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French hunt 2nd fugitive, launch new airstrikes on ISIS
A building is decorated with French flags in Paris, Friday, Nov. 27, 2015. French President Francois Hollande called on his compatriots to hang French tricolor flags on Friday to pay homage to the 130 victims of the Nov. 13 attacks, an unusual appeal by a Socialist leader in a country where flag-waving is often associated with nationalists and the far right. (AP Photo/Francois Mori)
French President Francois Hollande, center, attends a ceremony to honor the 130 victims killed in the Nov. 13 attacks in the courtyard of the Invalides in Paris, Friday, Nov. 27, 2015. A subdued France paid homage Friday to those killed two weeks ago in the attacks that gripped Paris in fear and mourning. (Philippe Wojazer/Pool Photo via AP)
PARIS, FRANCE - NOVEMBER 27: President of France Francois Hollande attends The National Tribute to The Victims of The Paris Terrorist Attacks at Les Invalides on November 27, 2015 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)
Wounded people in the Nov. 13 Paris attacks take part to a ceremony in the courtyard of the Invalides in Paris, Friday, Nov. 27, 2015. France is mourning and honoring those killed in the Nov. 13 attacks in a somber ceremony presided by French President Francois Hollande. (AP Photo/Francois Mori)
A man displays the French flag in front of the Bataclan concert hall, which was a site of last Friday's attacks, in Paris, Tuesday, Nov. 17, 2015. France is demanding security aid and assistance from the European Union in the wake of the Paris attacks and has triggered a never-before-used article in the EU's treaties to secure it. (AP Photo/Peter Dejong)
A woman prays as they pay their respect in front of a floral tribute near the Bataclan concert hall after the terrorist attacks in Paris, Monday, Nov. 16, 2015. France is urging its European partners to move swiftly to boost intelligence sharing, fight arms trafficking and terror financing, and strengthen border security in the wake of the Paris attacks. (AP Photo/Daniel Ochoa de Olza)
Two mourners kiss outside the Bataclan concert hall, which was a site of last Friday's attacks, adorned with a banner reading "Freedom is a monument which can not be destroyed", in Paris, Tuesday, Nov. 17, 2015. France is demanding security aid and assistance from the European Union in the wake of the Paris attacks and has triggered a never-before-used article in the EU's treaties to secure it. (AP Photo/Peter Dejong)
People watch the illuminated Eiffel Tower in the French national colors red, white and blue in honor of the victims of the terrorist attacks last Friday in Paris, Monday, Nov. 16, 2015. France is urging its European partners to move swiftly to boost intelligence sharing, fight arms trafficking and terror financing, and strengthen border security in the wake of the Paris attacks. (AP Photo/Frank Augstein)
People react, in front of the restaurant Le Carillon, one of the establishments targeted in Friday's gun and bomb attacks, in Paris, Monday, Nov. 16, 2015. French police raided more than 150 locations overnight as authorities released the names of two more potential suicide bombers involved in the Paris attacksâ one born in Syria, the other a Frenchman wanted as part of a terrorism investigation. (AP Photo/Kamil Zihnioglu)
Hands of participants cast a shadow as Indian youth try to stretch a huge banner before beginning a silent rally to protest against Friday's Paris attacks, in Kolkata, India, Wednesday, Nov. 18, 2015. Multiple attacks across Paris on Friday night have left more than one hundred dead and many more injured. (AP Photo/ Bikas Das)
French President Francois Hollande observes a minute of silence before delivering a speech at the Versailles castle, west of Paris, Monday, Nov.16, 2015. French President Francois Hollande addressed parliament about France's response to the Paris attacks, in a rare speech to lawmakers gathered in the majestic congress room of the Palace of Versailles. (Philippe Wojazer, Pool via AP)
French President Francois Hollande arrives to deliver a speech at the Versailles castle, west of Paris, Monday, Nov.16, 2015. French President Francois Hollande is addressing parliament about France's response to the Paris attacks, in a rare speech to lawmakers gathered in the majestic congress room of the Palace of Versailles. (AP Photo/Michel Euler)
A woman carrying flowers cries in front of the Carillon cafe and the Petit Cambodge restaurant in Paris Saturday Nov. 14, 2015, a day after over 120 people were killed in a series of attacks in Paris. French President Francois Hollande said at least 127 people died Friday night when at least eight attackers launched gun attacks at Paris cafes, detonated suicide bombs near France's national stadium and killed hostages inside a concert hall during a rock show. (AP Photo/Jerome Delay)
People lay flowers and candles in front of the restaurant Le Carillon, one of the establishments targeted in Friday's gun and bomb attacks, in Paris, Monday, Nov. 16, 2015. French police raided more than 150 locations overnight as authorities released the names of two more potential suicide bombers involved in the Paris attacksâ one born in Syria, the other a Frenchman wanted as part of a terrorism investigation. (AP Photo/Frank Augstein)
People react, in front of the restaurant Le Carillon, one of the establishments targeted in Friday's gun and bomb attacks, in Paris, Monday, Nov. 16, 2015. French police raided more than 150 locations overnight as authorities released the names of two more potential suicide bombers involved in the Paris attacksâ one born in Syria, the other a Frenchman wanted as part of a terrorism investigation. (AP Photo/Frank Augstein)
Flowers are put in a window shattered by a bullet as a forensic marker sits next to the impact as people pay their respect to the victims at the site of the attacks on restaurant Le Petit Cambodge (Little Cambodia) and the Carillon Hotel on the first of three days of national mourning in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Peter Dejong)
PARIS, FRANCE - NOVEMBER 15: People gather and sing songs at Place de la Republique on November 15, 2015 in Paris, France. As France observes three days of national mourning members of the public continue to pay tribute to the victims of Friday's deadly attacks. A special service for the families of the victims and survivors is to be held at Paris's Notre Dame Cathedral. (Photo by Jeff J Mitchell/Getty Images)
Women comfort each other as they stand in front of the Carillon cafe, in Paris, Saturday, Nov.14, 2015. French President Francois Hollande vowed to attack Islamic State without mercy as the jihadist group admitted responsibility Saturday for orchestrating the deadliest attacks inflicted on France since World War II. (AP Photo/Thibault Camus)
PARIS, FRANCE - NOVEMBER 15: Members of the public gather to lay flowers and light candles at La Belle Equipe restaraunt on Rue de Charonne following Fridays terrorist attack on November 15, 2015 in Paris, France. As France observes three days of national mourning members of the public continue to pay tribute to the victims of Friday's deadly attacks. A special service for the families of the victims and survivors is to be held at Paris's Notre Dame Cathedral later on Sunday. (Photo by Jeff J Mitchell/Getty Images)
BERLIN, GERMANY - NOVEMBER 14: People finish arranging candles into the word 'Paris' next to flowers and messages left at the gate of the French Embassy following the recent terror attacks in Paris on November 14, 2015 in Berlin, Germany. Hundreds of people came throughout the day to lay flowers, candles and messages of condolence to mourn the victims of attacks last night in Paris that left at least 120 people dead across the French capital. The Islamic State (IS) has claimed responsibility for the attacks that were carried out by at least eight terrorists.. (Photo by Sean Gallup/Getty Images)
A woman lights a candle at the French embassy in Guatemala City, during a ceremony Sunday, Nov. 15, 2015, in homage to the victims of the deadly attacks in Paris. Multiple terrorist attacks across Paris on Friday night left more than one hundred dead and many more injured. (AP Photo/Moises Castillo)
People react outside the Paris morgue in Paris, Saturday, Nov. 14, 2015. French President Francois Hollande vowed to attack the Islamic State group without mercy as the jihadist group admitted responsibility Saturday for orchestrating the deadliest attacks inflicted on France since World War II. (AP Photo/Peter Dejong)
A man pays respect to the victims of the attacks next to a sign reading "We Are Not Afraid" at Place de la Republique (Republic Square) in Paris, Saturday, Nov. 14, 2015. French President Francois Hollande vowed to attack the Islamic State group without mercy as the jihadist group claimed responsibility Saturday for orchestrating the deadliest attacks on France since World War II. (AP Photo/Christophe Ena)
PARIS, FRANCE - NOVEMBER 14: Bono and band members from the band U2 place flowers on the pavement near the scene of yesterday's Bataclan Theatre terrorist attack on November 14, 2015 in Paris, France. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Jeff J Mitchell/Getty Images)
People gather for a national service for the victims of the terror attack at Notre Dame cathedral in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Daniel Ochoa de Olza)
With the Brandenburg Gate, illuminated in the French national colors, in the background, a woman from Tunisia mourns for the victims killed in the Friday's attacks in Paris, France, next to the French Embassy in Berlin, Saturday, Nov. 14, 2015. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Markus Schreiber)
People pay their respect to the victims at the site of the attacks on restaurant Le Petit Cambodge (Little Cambodia) and the Carillon Hotel on the first of three days of national mourning in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Peter Dejong)
A man holds his head in his hands as he lays flowers in front of the Carillon cafe, in Paris, Saturday, Nov.14, 2015. French President Francois Hollande vowed to attack Islamic State without mercy as the jihadist group admitted responsibility Saturday for orchestrating the deadliest attacks inflicted on France since World War II. (AP Photo/Thibault Camus)
People react outside the Paris morgue in Paris, Saturday, Nov. 14, 2015. French President Francois Hollande vowed to attack the Islamic State group without mercy as the jihadist group admitted responsibility Saturday for orchestrating the deadliest attacks inflicted on France since World War II. (AP Photo/Peter Dejong)
PARIS, FRANCE - NOVEMBER 14: A woman cries near Le Petit Cambodge restaurant, the day after a deadly attack on November 14, 2015 in Paris, France. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Antoine Antoniol/Getty Images)
People pass a painting on a garage door opposite the restaurant on Rue de Charonne, Paris, Sunday, Nov. 15, 2015, where attacks took place on Friday. The Islamic State group claimed responsibility for Friday's attacks on a stadium, a concert hall and Paris cafes that left more than 120 people dead and over 350 wounded. (AP Photo/Frank Augstein)
A bullet hole in the window of the restaurant on Rue de Charonne, Paris, Sunday, Nov. 15, 2015, where attacks took place on Friday. The Islamic State group claimed responsibility for Friday's attacks on a stadium, a concert hall and Paris cafes that left more than 120 people dead and over 350 wounded. (AP Photo/Frank Augstein)
French soldiers patrol at the Eiffel Tower which remained closed on the first of three days of national mourning in Paris, Sunday, Nov. 15, 2015. Thousands of French troops deployed around Paris on Sunday and tourist sites stood shuttered in one of the most visited cities on Earth while investigators questioned the relatives of a suspected suicide bomber involved in the country's deadliest violence since World War II. (AP Photo/Peter Dejong)
A man places a candle in front of the Carillon cafe in Paris Saturday Nov. 14, 2015, a day after over 120 people were killed in a series of shooting and explosions. (AP Photo/Jerome Delay)
People light candles outside the French embassy in Vilnius, Lithuania, Sunday, Nov. 15, 2015, for the victims killed in Friday's attacks in Paris. (AP Photo/Mindaugas Kulbis)
BERLIN, GERMANY - NOVEMBER 14: People arrive to lay candles and flowers at the gate of the French Embassy as the Brandenburg Gate stands behind illuminated in the colors of the French flag following the recent terror attacks in Paris on November 14, 2015 in Berlin, Germany. Hundreds of people came throughout the day to lay flowers, candles and messages of condolence to mourn the victims of attacks last night in Paris that left at least 120 people dead across the French capital. The Islamic State (IS) has claimed responsibility for the attacks that were carried out by at least eight terrorists. (Photo by Sean Gallup/Getty Images)
A Christian boy prays during a candlelight vigil for victims who were killed in Friday's attacks in Paris, at St. Thomas Church in Islamabad, Pakistan, Sunday, Nov. 15, 2015. Multiple attacks across Paris on Friday night have left scores dead and hundreds injured. (AP Photo/Anjum Naveed)
A woman lays flowers to pay tribute to the victims of Paris Attacks outside the French Embassy in Budapest, Hungary, Saturday, Nov. 14, 2015. Multiple attacks across Paris on Friday night have left scores dead and hundreds injured. (Balazs Mohai/MTI via AP)
Alexandra Salomon, from Paris, France, center, joins a vigil outside the White House in Washington, Saturday, Nov. 14, 2015, to pay tribute to the victims of the Paris attacks. Multiple attacks across Paris on Friday night have left scores dead and hundreds injured. (AP Photo/Manuel Balce Ceneta)
Egyptian tour guides hold a candlelight vigil at the base of the Great Pyramid of Giza in solidarity with victims of attacks in Paris and Beirut and the Russian plane crash in northern Sinai, on the outskirts of Cairo, Egypt, Sunday, Nov. 15, 2015. The Islamic State group have claimed responsibility for Friday night's attacks in Paris, Thursdays's twin powerful suicide bombings that tore through a crowded Shiite neighborhood of Beirut, and bringing down a Russian jetliner over Egypt's Sinai region earlier this month. (AP Photo/Thomas Hartwell)
A young woman with her lips painted in the French national colours as Copenhagen citizens with torches gathered Sunday Nov. 15. 2015 at Kongens Nytorv Square by the French Embassy to commemorate the victims of the terrorist attack in Paris Friday. (Miriam Dalsgaard/Polfoto via AP) DENMARK OUT
Denver Broncos free safety Darian Stewart (26) carries the French Flag as he takes the field prior to an NFL football game against the Kansas City Chiefs, Sunday, Nov. 15, 2015, in Denver. (AP Photo/Brennan Linsley)
JERUSALEM, ISRAEL - NOVEMBER 15: Ultra Orthodox Jewish men pass as Jerusalem's Old City wall is illuminated with the colours of the French national flag to show solidarity for the victims of the Paris attacks on November 15, 2015 in Jerusalem, Israel. At least 129 people have been killed and over 300 are injured in Paris following a series of terrorist acts in the French capital on Friday. (Photo by Lior Mizrahi/Getty Images)
Mumbaiâs Chhatrapati Shivaji train station building is illuminated by the colors of the French national flag in solidarity with France following Fridayâs Paris terror attacks, Mumbai, India, Sunday, Nov. 15, 2015. This Mumbai landmark was one of the major targets of the 2008 terror attacks that killed 166 people. (AP Photo/Rafiq Maqbool)
French exchange student Loris Boichot, of Nice, France, is wrapped in the French flag as he displays a placard at a vigil Sunday, Nov. 15, 2015, in Boston, held in sympathy for people of Paris. Multiple attacks across the French capital on Friday night have left scores dead and hundreds injured. The placard call for an end to barbarism, and includes the opening words to the French national anthem. (AP Photo/Steven Senne)
NEW YORK, NY - NOVEMBER 14: A woman cries outside of the Consulate General of France in New York the day after an attack on civilians in Paris on November 14, 2015 in New York City. At least 100 people were killed in a popular Paris concert hall, one of at least 6 terror attacks in the French capital. The French president Francois Hollande closed French borders following the attacks. (Photo by Spencer Platt/Getty Images)
A woman cries as she mourns for the victims killed in the Friday's attacks in Paris, France, in front of the French Embassy in Berlin, Saturday, Nov. 14, 2015. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Markus Schreiber)
A woman with her arm painted with the phrase in French "I am Paris" participates in a ceremony in Lima, Peru, in homage to the victims of the deadly attacks in Paris, Sunday, Nov. 15, 2015. Multiple terrorist attacks across Paris on Friday night left more than one hundred dead and many more injured. (AP Photo/Rodrigo Abd)
French soldiers patrol the area at the foot of the Eiffel Tower in Paris on November 14, 2015 following a series of coordinated attacks in and around Paris late Friday which left more than 120 people dead. French President Francois Hollande blamed the Islamic State group for the attacks in Paris that left at least 128 dead, calling them an 'act of war'. The multiple attacks across the city late Friday were 'an act of war... committed by a terrorist army, the Islamic State, against France, against... what we are, a free country,' Hollande said. AFP PHOTO / FRANCOIS GUILLOT (Photo credit should read FRANCOIS GUILLOT/AFP/Getty Images)
Shoes and bloody shirt lay outside the Bataclan concert hall, Saturday, Nov. 14, 2015 in Paris. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Christophe Ena)
PARIS, FRANCE - NOVEMBER 15: A rose is placed beside a bullet hole at La Belle Equipe restaraunt on Rue de Charonne following Fridays terrorist attack on November 15, 2015 in Paris, France. As France observes three days of national mourning members of the public continue to pay tribute to the victims of Friday's deadly attacks. A special service for the families of the victims and survivors is to be held at Paris's Notre Dame Cathedral later on Sunday.(Photo by Jeff J Mitchell/Getty Images)
A woman places a paper with a peace sign combined with the Eiffel Tower and the words: 'We are united' between flowers and candles to remember the victims of Friday's attacks in Paris, in front of the French Embassy in Berlin, Sunday, Nov. 15, 2015. Multiple attacks across Paris on Friday night have left scores dead and hundreds injured. (AP Photo/Markus Schreiber)
A man passes candles placed for t victims of the Paris attacks Friday night, in front of the Hildesheim cathedral in Hildesheim northern Germany, Saturday, Nov. 14, 2015. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (Peter Steffen/dpa via AP)
People gather in Hong Kong, Saturday, Nov. 14, 2015, to mourn for the victims killed in Friday's attacks in Paris. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Kin Cheung)
A man hides his face as he leaves the morgue in Paris, Saturday, Nov. 14, 2015. French President Francois Hollande vowed to attack the Islamic State group without mercy as the jihadist group admitted responsibility Saturday for orchestrating the deadliest attacks inflicted on France since World War II. (AP Photo/Daniel Ochoa de Olza)
A watch lays on the ground outside the Bataclan concert hall, Saturday, Nov. 14, 2015 in Paris. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Christophe Ena)
Flowers are placed outside the Bataclan concert hall, Saturday, Nov. 14, 2015 in Paris. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Christophe Ena)
The One World Trade Center spire is lit blue, white and red after New York Gov. Andrew Cuomo announced the lighting in honor of dozens killed in the Paris attacks Friday, Nov. 13, 2015, in New York. French officials say several dozen people have been killed in shootings and explosions at a theater, restaurant and elsewhere in Paris. (AP Photo/Kevin Hagen)
SYDNEY, AUSTRALIA - NOVEMBER 14: Pedestrians walk in front of the Sydney Opera House as its sails are illuminated in the colours of the French flag on November 14, 2015 in Sydney, Australia. At least 120 people have been killed and over 200 are injured in Paris following a series of terrorist acts in the French capital on Friday. (Photo by Daniel Munoz/Getty Images)
People mix the wax of candles with the French colors outside the French embassy in Lima, Peru, during a ceremony in homage to the victims of the deadly attacks in Paris, Sunday, Nov. 15, 2015. Multiple terrorist attacks across Paris on Friday night left more than one hundred dead and many more injured. (AP Photo/Rodrigo Abd)
SYDNEY, AUSTRALIA - NOVEMBER 14: A woman with a French flag painted in her face cries during a vigil for victims of the Paris terror attacks at Martin Place on November 14, 2015 in Sydney, Australia. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Daniel Munoz/Getty Images)
Cards, candles and flowers are placed in front of the Carillon cafe in Paris Saturday Nov. 14, 2015, a day after over 120 people were killed in a series of shooting and explosions. (AP Photo/Jerome Delay)
People lay flowers in front of the French Embassy in Kiev, Ukraine, Saturday, Nov. 14, 2015, to mourn the victims in Friday's Paris attacks. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Sergei Chuzavkov)
SHANGHAI, CHINA - NOVEMBER 14: Benjamin Hebert of France with a message for Paris on his golf cap during the third round of the BMW Masters at Lake Malaren Golf Club on November 14, 2015 in Shanghai, China. (Photo by Ross Kinnaird/Getty Images)
People line up to lay flowers in front of the French embassy in Moscow, Russia, Saturday, Nov. 14, 2015, for the victims of the Paris attacks on Friday. French President Francois Hollande said more than 120 people died Friday night in shootings at Paris cafes, suicide bombings near France's national stadium and a hostage-taking slaughter inside a concert hall. (AP Photo/Pavel Golovkin)
People lay flowers and light candles in front of French Embassy in Warsaw on November 14, 2015 following a series of terror attacks in the French city of Paris and its surroundings that has left at least 120 people dead and some 200 wounded. AFP PHOTO / JANEK SKARZYNSKI (Photo credit should read JANEK SKARZYNSKI/AFP/Getty Images)
A woman holds a bouquet of roses during a vigil in solidarity with France after the deadly attacks in Paris, outside France's embassy in Bogota, Colombia, Saturday, Nov. 14, 2015. Multiple attacks across Paris on Friday night have left scores dead and hundreds injured. (AP Photo/Fernando Vergara)
SYDNEY, AUSTRALIA - NOVEMBER 14: A man hold a French flag and a sign during a vigil for victims of the Paris terror attacks at Martin Place on November 14, 2015 in Sydney, Australia. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Daniel Munoz/Getty Images)
People line up to give blood at the St Louis hospital across the street from the Petit Cambodge restaurant in Paris Saturday Nov. 14, 2015, a day after over 120 people were killed in a series of shooting and explosions. (AP Photo/Jerome Delay)
PARIS, FRANCE - NOVEMBER 14: A man reads a French newspaper after a terrorist attack on November 14, 2015 in Paris, France. At least 120 people have been killed and over 200 injured, 80 of which seriously, following a series of terrorist attacks in the French capital. (Photo by Pascal Le Segretain/Getty Images)
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French and Belgian police were already looking for a key suspect, 26-year-old Salah Abdeslam, whose suicide-bomber brother, Brahim, died in the attacks Friday night that killed at least 129 people and left over 350 wounded in Paris. Islamic state militants have claimed responsibility for the carnage.

Seven attackers died that night - three near the national stadium, three inside the Bataclan concert hall and one at a restaurant nearby. A team of gunmen also opened fire at nightspots in one of Paris' trendiest neighborhoods.

However, French officials told The Associated Press on Tuesday that an analysis of the attacks showed that one person directly involved in them was unaccounted for. The three officials, who spoke on condition of anonymity because they were not authorized to provide details about the ongoing investigation, said the second fugitive has not been identified.

See photos of the suspects involved in the attacks in France:

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Suspects in the Paris attacks, Abdelhamid Abaaoud, Salah Abdeslam, Ahmad Almohammad
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French hunt 2nd fugitive, launch new airstrikes on ISIS
This undated image made available in the Islamic State's English-language magazine Dabiq, shows Belgian Abdelhamid Abaaoud. Abaaoud the Belgian jihadi suspected of masterminding deadly attacks in Paris was killed in a police raid on a suburban apartment building, the city prosecutor's office announced Thursday Nov. 1, 2015. Paris Prosecutor Francois Molins' office said 27-year-old Abdelhamid Abaaoud was identified based on skin samples. His body was found in the apartment building targeted in the chaotic and bloody raid in the Paris suburb of Saint-Denis on Wednesday. (Militant photo via AP)
This undated image made available in the Islamic State's English-language magazine Dabiq, shows Abdelhamid Abaaoud. Abaaoud, the child of Moroccan immigrants who grew up in the Belgian capital’s Molenbeek-Saint-Jean neighborhood, was identified by French authorities on Monday Nov. 16, 2015, as the presumed mastermind of the terror attacks last Friday in Paris that killed over a hundred people and injured hundreds more. (Militant Photo via AP)
This undated image taken from a Militant Website on Monday Nov. 16, 2015 showing Belgian Abdelhamid Abaaoud. A French official says Abdelhamid Abaaoud is the suspected mastermind of the Paris attacks was also linked to thwarted train and church attacks. (Militant video via AP)
Abdelhamid Abaaoud, suspected mastermind of the #ParisAttacks was "interviewed" in #ISIS's Dabiq magazine https://t.co/wSKmztFfn5
BREAKING: Third Bataclan attacker identified as Foued Mohamed-Aggad https://t.co/FYwEykV9Kp https://t.co/7g6vH7gvwH
This undated photo released late Sunday, Nov. 15, 2015, by Greece's migration policy ministry shows a registration photo from a document issued to 25-year old Ahmad Almohammad, holder of a Syrian passport found near a dead assailant in the scene of a Paris attack Friday. The document was issued on Sunday, Oct. 4 by authorities on the Greek island of Leros, where the man arrived a day earlier on a frail boat carrying migrants over from Turkey. It protects him from deportation for six months, and is the same documentation routinely issued to thousands of newly-arrived migrants. (Greek Migration Ministry via AP)
This undated photo released late Sunday, Nov. 15, 2015, by Greece's migration policy ministry shows a document issued to 25-year old Ahmad Almohammad, holder of a Syrian passport found near a dead assailant in the scene of a Paris attack Friday. The document was issued on Sunday, Oct. 4 by authorities on the Greek island of Leros, where the man arrived a day earlier on a frail boat carrying migrants over from Turkey. It protects him from deportation for six months, and is the same documentation routinely issued to thousands of newly-arrived migrants. On the right is a copy of his fingerprints, taken on Saturday, Oct. 3. (Greek Migration Policy Ministry via AP)

This undated file photo provided by French Police shows 26-year old Salah Abdeslam, who is wanted by police in connection with recent terror attacks in Paris, as police investigations continue Friday, Nov. 13, 2015. French police released the wanted notice and photo of the suspect on the run since the attacks in Paris on Friday. The notice, released on the France National Police Twitter account, says anyone seeing Salah Abdeslam, should consider him dangerous. (Police Nationale via AP)

This undated file photo released Friday, Nov. 13, 2015, by French Police shows 26-year old Salah Abdeslam, who is wanted by police in connection with recent terror attacks in Paris, as police investigations continue. The notice, released on the national police Twitter account, says anyone seeing Salah Abdeslam, should consider him dangerous and call authorities immediately. The notice reads in French: "Call for witnesses - Police are hunting a suspect : Salah Abdeslam, born on Sept. 15, 1989 Brussels, Belgium. ...Dangerous individual don't intervene yourself". (Police Nationale via AP)
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The Paris attacks have galvanized international determination to confront the militants.

The French government invoked a never-before-used article of the EU's Lisbon Treaty obliging members of the 28-nation bloc to give "aid and assistance by all the means in their power" to a member country that is "the victim of armed aggression on its territory."

French Defense Minister Jean-Yves Le Drian said all 27 of France's EU partners responded positively.

"Every country said: I am going to assist, I am going to help," Drian said.

Arriving for talks in Brussels, Greek Defense Minister Panagiotis Kammenos told reporters that the Paris attacks were a game-changer for the bloc. "This is Sept. 11 for Europe," he said.

Paris police said 16 people had been arrested in connection to the deadly attacks, and police have carried out 104 raids since a state of emergency was declared Saturday.

French military spokesman Col. Gilles Jaron said the latest airstrikes in the Islamic State group's de-facto capital, the Syrian city of Raqqa, destroyed a command post and training camp. NATO allies were sharing intelligence and working closely with France, NATO chief Jens Stoltenberg said.

In Moscow, Putin ordered the Russian missile cruiser Moskva, currently in the Mediterranean, to start cooperating with the French military on operations in Syria. His order came as Russia's defense minister said its warplanes fired cruise missiles on militant positions in Syria's Idlib and Aleppo provinces. IS has positions in Aleppo province, while the Nusra militant group is in Idlib.

Moscow has vowed to hunt down those responsible for blowing up a Russian passenger plane over Egypt last month, killing 224 people, mostly Russian tourists. IS has also claimed responsibility for that Oct. 31 attack.

Seven of the Paris attackers died Friday, six after detonating suicide belts and one from police gunfire. However, Iraqi intelligence officials have told The Associated Press their sources indicated 19 people participated in the Paris attacks and five others provided hands-on logistical support.

French Interior Minister Bernard Cazeneuve conceded that "the majority of those who were involved in this attack were unknown to our services."

Mohamed Abdeslam, another brother of fugitive Salah Abdeslam, on Tuesday urged his brother to turn himself in. Mohamed, who was arrested and questioned following the attack but released Monday, told French TV BFM that his brother was devout but showed no signs of being a radical Islamist. He said Salah prayed and attended a mosque occasionally, but also dressed in jeans and pullovers.

Two men arrested in Belgium, meanwhile, admitted driving to France to pick up Salah Abdeslam early Saturday, their lawyers said.

Mohammed Amri, 27, denies any involvement in the Paris attacks and says he went to Paris to collect his friend Salah, according to his defense lawyer Xavier Carrette. Hamza Attou, 21, says he went along to keep Amri company, his lawyer Carine Couquelet said. Both are being held on charges of terrorist murder and conspiracy.

Belgian media reported that Amri and Attou were being investigated as potential suppliers of the suicide bombs used in the attacks, since ammonium nitrate, a fertilizer that can be used to make explosives, was discovered in a search of their residence.

Their defense lawyers said they could not confirm those reports.

Salah and Brahim Abdeslam booked a hotel in the southeastern Paris suburb of Alfortville and rented a house in the northeastern suburb of Bobigny several days before the attacks, a French judicial official told The Associated Press. She spoke on condition of anonymity because she was not authorized to speak about the ongoing investigation.

Austria's Interior Ministry said Salah Abdeslam, the suspected driver of one group of gunmen carrying out attacks on Paris, entered the country about two months ago with two unidentified companions. After the attacks, Salah Abdeslam slipped through France's fingers, with French police accidentally permitting him to cross into Belgium on Saturday.

Kerry flew to France as a gesture of solidarity and met Hollande and Foreign Minister Laurent Fabius on Tuesday.

Standing next to Hollande at the Elysee Palace, Kerry said the carnage in the French capital, along with recent attacks in Egypt, Lebanon and Turkey, made it clear that more pressure must be brought to bear on Islamic State extremists.

A cease-fire between Syria's government and the opposition could be just weeks away, Kerry said, describing it as potentially a "gigantic step" toward deeper international cooperation against IS.

A French security official, meanwhile, said anti-terror intelligence officials had identified Abdelhamid Abaaoud, a Belgian of Moroccan descent, as the chief architect of the Paris attacks.

The official cited chatter from IS figures that Abaaoud had recommended a concert as an ideal target for inflicting maximum casualties, as well as electronic communications between Abaaoud and one of the Paris attackers who blew himself up. The official spoke on condition of anonymity to discuss the sensitive investigation.

It was not exactly clear where Abaaoud is.

In other developments Tuesday:

- In a show of solidarity, British Prime Minister David Cameron was joining Prince William at a soccer match Tuesday night between England and France in London's Wembley Stadium. Armed police were patrolling the site.

- Another Belgian car with a shattered front passenger window was found in northern Paris - the third vehicle police identified as having links to the attacks.

- The Eiffel Tower shut down again after opening for just a day Monday, and heavily armed troops patrolled the courtyard of the Louvre Museum.

- Germany's top security official said a Syrian passport found with one of the Paris attackers may have been planted to make Europeans fearful of refugees. Interior Minister Thomas de Maiziere told reporters in Berlin it was "unusual that such a person was faithfully registered in Greece, Serbia and Croatia" amid the chaos of Europe's immigration crisis. He said the multiple passport registrations could be "a trail that was intentionally laid."

- German police arrested seven people near the western city of Aachen, but later released them, saying no links to the Paris attacks were found.

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