New York City blast: FBI asks for help finding 2 men seen near bomb

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The FBI has released a poster featuring a photo of two men seen near the site of Saturday's bombing in New York and has asked the public to help find them.

(The FBI released a poster seeking information about two individuals related to the New York bombing. Photo credit: FBI)

According to the poster, the men were seen on closed circuit TV picking up a suitcase from the sidewalk in the Chelsea neighborhood of Manhattan, "removing an improvised explosive device from the luggage," and then leaving the device behind but taking the suitcase when they departed the scene.

"The image shown," says the poster, "was taken on West 27th Street between 6th and 7th Avenues in Manhattan between 8 p.m. and 9 p.m. on Saturday, September 17, 2016, in the same hour that an explosive device had detonated on West 23rd Street."

Related: Complete Coverage of the NY/NJ Bombings

No one was killed by the improvised device that detonated on 23rd Street, but more than 30 people sustained injuries. The second device — the one the two men in the photo removed from a suitcase — was found unexploded several hours later on 27th Street.

Learn more the investigation into this case:

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Authorities investigate Residence in Elizabeth NJ for Chelsea Bombing
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Authorities investigate Residence in Elizabeth NJ for Chelsea Bombing
Ahmad Khan Rahami, who is wanted for questioning in connection with an explosion in New York City, is seen in this image released by the New Jersey State Police on September 19, 2016. Courtesy New Jersey State Police/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY
Ahmad Khan Rahami, who is wanted for questioning in connection with an explosion in New York City, is seen in this image taken from video, released by the New Jersey State Police on September 19, 2016. Courtesy New Jersey State Police/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY
Law enforcement officers mark evidence near the site where Ahmad Khan Rahami, sought in connection with a bombing in New York, was taken into custody in Linden, New Jersey, U.S., September 19, 2016. REUTERS/Eduardo Munoz
Law enforcement officers mark evidence near the site where Ahmad Khan Rahami, sought in connection with a bombing in New York, was taken into custody in Linden, New Jersey, U.S., September 19, 2016. REUTERS/Eduardo Munoz TPX IMAGES OF THE DAY
Law enforcement officers secure the area where they allegedly arrested terror suspect Ahmad Khan Rahami following a shootout in Linden, New Jersey, on September 19, 2016. The FBI led a major manhunt Monday for an 'armed and dangerous' Afghan-born American wanted in connection with weekend bombings in New York and New Jersey as a third nest of bombs was discovered in his hometown. Federal investigators released a mugshot of 28-year-old Ahmad Khan Rahami, who has brown hair, brown eyes and a brown beard, saying he was last known to live in Elizabeth, a town adjacent to Newark International Airport. / AFP / Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
Ahmad Khan Rahami alive but injured, loaded into ambulance in Linden https://t.co/aMCNYxwFnH https://t.co/JJlFhPLYSu
ELIZABETH, NJ - SEPTEMBER 19: A local police officer stands guard at an intersection as members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
Onlookers watch while Federal Bureau of Investigation (FBI) personnel search an address during an investigation into Ahmad Khan Rahami, who was wanted for questioning in an explosion in New York, which authorities believe is linked to the explosive devices found in New Jersey, in Elizabeth, U.S., September 19, 2016. REUTERS/Eduardo Munoz
ELIZABETH, NJ - SEPTEMBER 19: Members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
ELIZABETH, NJ - SEPTEMBER 19: Members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
ELIZABETH, NJ - SEPTEMBER 19: Members of the Federal Bureau of Investigation (FBI) and other law enforcement officials work near a residence they are investigating in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
ELIZABETH, NJ - SEPTEMBER 19: Members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
ELIZABETH, NJ - SEPTEMBER 19: A local police officer stands guard at an intersection as members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
ELIZABETH, NJ - SEPTEMBER 19: Members of the Federal Bureau of Investigation (FBI) and other law enforcement officials investigate a residence in connection to Saturday night's bombing in Manhattan on September 19, 2016 in Elizabeth, New Jersey. This morning law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack in Chelsea. (Photo by Drew Angerer/Getty Images)
Elizabeth NJ. Mayor J. Christian Bollwage answers a question as he stands not far from where police and officials gathered at a building early Monday, Sept. 19, 2016, in Elizabeth, N.J. The Elizabeth apartment is tied to a man wanted for questioning in the New York City bombing. Ahmad Khan Rahami has lived at that address in Elizabeth. He is a naturalized citizen from Afghanistan, the FBI said. (AP Photo/Mel Evans)
***WANTED FOR QUESTIONING**** RETWEET! https://t.co/B3IgarqY2D https://t.co/QUjCFdtVc2
ELIZABETH, NJ - SEPTEMBER 19: Law enforcement officials tow a car near the site of an investigation of a residence in connection to Saturday night's bombing in Manhattan, September 19, 2016 in Elizabeth, New Jersey. On Monday morning, law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack. (Photo by Drew Angerer/Getty Images)
FBI agents walk around the roof outside an apartment during an investigation at a building Monday, Sept. 19, 2016, in Elizabeth, N.J. FBI agents are searching the apartment in New Jersey that is tied to Ahmad Khan Rahami wanted for questioning in the New York City bombing. (AP Photo/Mel Evans)
An FBI agent carries a box of material from an apartment to a car during an investigation at a building in Elizabeth, N.J. early Monday, Sept. 19, 2016. The Elizabeth apartment is tied to a man wanted for questioning in the New York City bombing. Ahmad Khan Rahami has lived at that address in Elizabeth. He is a naturalized citizen from Afghanistan, the FBI said. (AP Photo/Mel Evans)
Federal Bureau of Investigation (FBI) personnel search an address during an investigation into Ahmad Khan Rahami, who was wanted for questioning in an explosion in New York, which authorities believe is linked to the explosive devices found in New Jersey, in Elizabeth, U.S., September 19, 2016. REUTERS/Eduardo Munoz
ELIZABETH, NJ - SEPTEMBER 19: A man exits from the fried chicken restaurant and walks to a car, near the site of where members of the Federal Bureau of Investigation (FBI) and other law enforcement officials are investigating a residence in connection to Saturday night's bombing in Manhattan, September 19, 2016 in Elizabeth, New Jersey. On Monday morning, law enforcement released a photograph of 28-year-old Ahmad Khan Rahami, who they are seeking in connection to the attack. (Photo by Drew Angerer/Getty Images)
Ahmad Khan Rahami is taken into custody after a shootout with police Monday, Sept. 19, 2016, in Linden, N.J. Rahami was wanted for questioning in the bombings that rocked the Chelsea neighborhood of New York and the New Jersey shore town of Seaside Park. (Moshe Weiss via AP)
Policemen place in an ambulance a man they identified as Ahmad Khan Rahami, who is wanted for questioning in connection with an explosion in New York City, in Linden, New Jersey, in this still image taken from video September 19, 2016. REUTERS/Anthony Genaro
A policeman takes a photo of a man they identified as Ahmad Khan Rahami, who is wanted for questioning in connection with an explosion in New York City, as he is placed into an ambulance in Linden, New Jersey, in this still image taken from video September 19, 2016. REUTERS/Anthony Genaro TPX IMAGES OF THE DAY
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On the poster, which is headlined "Seeking Information," the two men are seen walking together on a New York sidewalk. One is wearing a pink shirt, the other is wearing a light-colored shirt. Both have dark hair.

Ahmad Rahami has been charged in the Chelsea bombing, and in a bombing in New Jersey earlier the same day. He was taken into custody after a shootout in New Jersey Monday, and also faces five state counts of attempted murder of a police officer. No one else has been arrested or charged.

Did Rahami work alone?:

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