Man held after Manhattan terror attack occurred today.

A man detonated an improvised explosive device in an underground passageway at a major commuter hub in New York City Monday morning, officials said.

The suspect, named as Akayed Ullah, 27  is being held after an attempted terror attack at the bus terminal.The suspect was wounded when a “low-tech explosive device” strapped to his body blew up in an underpass, officials say.It is the biggest and busiest bus terminal in the world, serving more than 65 million people a year.

The underground passageway in Manhattan connects the subway stations at Times Square and the Port Authority Bus Terminal and would have been packed with commuters during the morning rush.

The explosion occurred at about 07:30 Andre Rodriguez, 62, an eye witness said,  “I was going through the turnstile. It sounded like an explosion, and everybody started running.”

“Terrorists won’t win,” Mayor Bill de Blasio said after a blast at the Port Authority terminal in Manhattan during the morning rush hour on Monday.

They say three other people suffered minor injuries.

A photo circulating on social media shows a man, said to be the suspect, lying on the ground with his clothes ripped and lacerations on his upper body.Mayor De Blasio said he was believed to have acted alone.

New York Governor Andrew Cuomo said: “This is New York. The reality is that we are a target by many who would like to make a statement against democracy, against freedom.

“We have the Statue of Liberty in our harbour and that makes us an international target.”