The man at the center of a failed terror attack at New York City’s Port Authority transit hub Monday morning has reportedly told authorities why he detonated an explosive in an underground tunnel during rush hour.

As CrimeOnline previously reported, authorities identified the attempted suicide bombing suspect as Akayed Ullah, a 27-year-old Bangladesh native who currently lives in Brooklyn.

He reportedly admitted that he had attempted the attack in the name of ISIS, but the New York Post now reports that investigators have not found that he has had any direct contact with the extremist terror group.

Ullah also reportedly told investigators that he detonated the bomb because he was seeking revenge for acts of military force overseas.

“They’ve been bombing in my country and I wanted to do damage here,” sources with knowledge of the investigation told the New York Post.

The suspect is reportedly in serious condition but authorities have not indicated that his injuries were life-threatening. Three pedestrian at the scene were treated for minor injuries.

[Feature image: Associated Press]