An attempted terrorist attack which injured five people at one of New York's busiest commuter hubs has been caught on video.
The 27-year-old suspect, Akayed Ullah, can be seen lying motionless after his bomb prematurely exploded.
The Isil-inspired attacker was seriously injured along while four other people, including a police officer, suffered minor injuries.
The suspect in the incident at the Port Authority Bus Terminal, a block from Times Square, is being held in custody and has been named as Akayed Ullah by the New York Police Department (NYPD).
The weapon was based on a pipe bomb and was fixed to the suspect with zip ties and hook and loop fastens, police said.
New York Governor Andrew Cuomo, described the device as "amateur level" at a press conference near the site.
New York Mayor Bill de Blasio told the same news conference that the incident, which happened at the start of the city's rush hour, was "an attempted terrorist attack."
"As New Yorkers our lives revolve around the subways. When we hear of an attack in the subways it is incredibly unsettling," de Blasio said.
The incident was captured on security video, the police said.
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Video footage shows smoke and a man lying down in the tunnel that connects the Times Square subway station to the bus station.
A photograph showed a man lying face down, with tattered clothes and burns on his exposed torso.
“There was a stampede up the stairs to get out,” said Diego Fernandez, one of the commuters at Port Authority. “Everybody was scared and running and shouting.”
Alicja Wlodkowski, a Pennsylvania resident in New York for the day, was sitting in a restaurant in the bus terminal building at the time.
“Suddenly, I saw a group of people, like six people, running like nuts," she said.
"A woman fell. No one even went to stop and help her because the panic was so scary."