'Panique': Paris on edge with alleged attack suspect on the loose

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Paris Mourns After Terrorist Attacks

Anxiety was in the air in Paris on Sunday, with news that French officials were hunting a "dangerous" suspect linked to the Paris terror attacks fueling new fears in a city already on edge.

Police put out a bulletin saying a search was under way for Salah Abdeslam, 26, who they believe is linked to the spree of attacks that killed 129 dead Friday. Abdeslam is allegedly the brother of another suspect in custody and being questioned — and of one of the deceased attackers.

SEE ALSO: After Paris attacks, fugitive slipped through police dragnet

The possibility that an accomplice was on the loose came as Paris struggled to come to grips with the wave of terror.

Jitters were palpable in the area around the Bataclan nightclub, the scene of the deadliest violence.

Tracey Friley, who lives in the typically bustling area, said bars and nightlife were quiet overnight.

"Everybody is on edge," she said. "It's to be expected."

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'Panique': Paris on edge with alleged attack suspect on the loose
People run after hearing what is believed to be explosions or gun shots near Place de la Republique square in Paris on November 13, 2015. At least 18 people were killed in several shootings and explosions in Paris today, police said. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
Spectators gather on the pitch of the Stade de France stadium following the friendly football match between France and Germany in Saint-Denis, north of Paris, on November 13, 2015, after a series of gun attacks occurred across Paris as well as explosions outside the national stadium where France was hosting Germany. At least 18 people were killed, with at least 15 people killed at the Bataclan concert hall in central Paris, only around 200 metres from the former offices of Charlie Hebdo which were attacked by jihadists in January. AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP/Getty Images)
PARIS, FRANCE - NOVEMBER 14: French officials and medics work near Le Petit Cambodge restaurant in the 11th district after a drive-by shooting killing 11 people, November 14, 2015, Paris, France. At least 142 people were killed deadly shootings and explosions took place in several neighbourhoods of Paris. 1,500 troops deployed in French capital says Elysse. (Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)
Two men evacuate the Place de la Republique square in Paris as a police officer looks on, after several shootings on November 13, 2015. At least 18 people were killed in several shootings and explosions in Paris today, police said. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
PARIS, FRANCE - NOVEMBER 13: Police survey the area of Boulevard Baumarchais after an attack in the French capital on November 13, 2015 in Paris, France. At least 18 people were killed in a series of gun attacks across Paris, as well as explosions outside the national stadium where France was hosting Germany. (Photo by Thierry Chesnot/Getty Images)
Rescuers rush to the scene following an attack in the 10th arrondissement of the French capital Paris, on November 13, 2015. At least 18 people were killed as multiple shootings and explosions hit Paris, police said. Police also said there was an ongoing hostage crisis in the Bataclan a concert hall in the French capital. AFP PHOTO / KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)
PARIS, FRANCE - NOVEMBER 14: French officials and medics work near Le Petit Cambodge restaurant in the 11th district after a drive-by shooting killing 11 people, November 14, 2015, Paris, France. At least 142 people were killed deadly shootings and explosions took place in several neighbourhoods of Paris. 1,500 troops deployed in French capital says Elysse. (Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)
A firefighter attend to an injured person lying on a stretcher near the Bataclan concert hall in central Paris, on November 14, 2015. At least 39 people were killed in an 'unprecedented' series of bombings and shootings across Paris and at the Stade de France stadium on November 13. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
People are evacuated by bus, near the Bataclan concert hall in central Paris, on November 14, 2015. More than 100 people were killed in a mass hostage-taking at a Paris concert hall on November 13 and many more were feared dead in a series of bombings and shootings, as France declared a national state of emergency. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)
WASHINGTON, DC - NOVEMBER 13: U.S. President Barack Obama departs the White House briefing room after delivering remarks on the recent violence taking place in Paris, France November 13, 2015 in Washington, DC. Gunfire and explosions erupted in the French capital with early casualty reports indicating at least 60 dead. (Photo by Win McNamee/Getty Images)
Football fans leave the Stade de France stadium following the friendly football match between France and Germany in Saint-Denis, north of Paris, on November 13, 2015, after a series of gun attacks occurred across Paris as well as explosions outside the national stadium where France was hosting Germany. At least 18 people were killed, with at least 15 people killed at the Bataclan concert hall in central Paris, only around 200 metres from the former offices of Charlie Hebdo which were attacked by jihadists in January. AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP/Getty Images)
supporters run in panic on the pitch during the International friendly match between France and Germany on November 13, 2015 at the Stade France in Paris, France.(Photo by VI Images via Getty Images)
Police are seen outside a cafe-restaurant in 10th arrondissement of the French capital Paris, on November 13, 2015. At least 18 people were killed as multiple shootings and explosions hit Paris, police said. Police also said there was an ongoing hostage crisis in the Bataclan a concert hall in the French capital. AFP PHOTO / KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)
A policeman stands behind a cordon blocking the street near the site of an attack in a restaurant in Paris on November 13, 2015. At least 18 people were killed in multiple attacks in Paris Friday, including one near the Stade de France sports stadium and another at a concert venue. AFP PHOTO / KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)
A victim lies on the ground covered by a white sheet (Rear L) as special police work at the attack scene rue Bichat, in central Paris, early on November 14, 2015. More than 100 people were killed in a mass hostage-taking at a Paris concert hall late on November 13 and many more were feared dead in a series of bombings and shootings, as France declared a national state of emergency. AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP/Getty Images)
Firefighters and rescuers evacuate injured people near the Bataclan concert hall in central Paris, on November 14, 2015. At least 39 people were killed in an 'unprecedented' series of bombings and shootings across Paris and at the Stade de France stadium on November 13. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
People are evacuated following an attack at the Bataclan concert venue in Paris, on November 13, 2015. At least 18 people were killed in multiple attacks in Paris Friday, including one near the Stade de France sports stadium. AFP PHOTO / KENZO TRIBOUILLARD (Photo credit should read KENZO TRIBOUILLARD/AFP/Getty Images)
Forensic experts inspect the site of an attack outside the Stade de France stadium in Saint-Denis, north of Paris, early on November 14, 2015, after a series of gun attacks occurred across Paris as well as explosions outside the national stadium where France was hosting Germany. A number of people were killed and others injured in a series of gun attacks across Paris, as well as explosions outside the national stadium where France was hosting Germany. AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP/Getty Images)
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Those nerves were brought to the fore shortly after authorities released Abdeslam's image to the public. A crowded but calm gathering at the memorial around Paris's Place de la République quickly devolved into chaos.

Hundreds of screaming and crying people bolted from the square as rumors of an active shooter spread like wildfire. They flooded into nearby shops, which rushed to lock down their doors and herd people to hiding places, while others banged to be let in as armed police descended and searched the square.

READ MORE: Hundreds flee gathering in central Paris in apparent false alarm

A similar scene played out near Cathédrale Notre Dame, where rumors of gunfire sent people running through the streets. The upheaval left glasses and plates shattered on the ground in front of cafes.

French police later declared both to be false alarms -- simply a "movement panique," or panic.

More from NBCNews.com:
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