Akayed Ullah, a 27-year-old Bangladeshi and self-described supporter of the radical group Islamic State, has been indicted in a criminal complaint filed in US district court in Manhattan.
He has been charged with bombing a public place, destruction of property by means of explosive and use of a destructive device.
Ullah planned to “murder as many human beings as he could ... in support of a vicious terrorist cause,” acting US attorney Joon Kim told a news conference after filing the charges.
New York City police have said that Ullah set off a pipe bomb in an underground corridor of the subway system that connects Times Square to the Port Authority Bus Terminal at rush hour on Monday morning, injuring himself and three others.
He told police interviewers after the blast, “I did it for the Islamic State,” according to court papers filed by federal prosecutors.
Ullah began the process of self-radicalization in 2014 when he started viewing pro-Islamic State materials online and carried out his attack because he was angry over U.S. policies in the Middle East, prosecutors said.
New York officials on Tuesday also filed state charges against Ullah, as investigators in his home country questioned his wife.
Ullah was charged with criminal possession of a weapon, supporting an act of terrorism, and making a terroristic threat under New York state law, the New York City Police Department said.
The federal charges, which are expected to take precedence over the state charges, carry a maximum sentence of life in prison.
Officials declined to disclose Ullah’s condition at Bellevue Hospital late on Tuesday. His first court appearance in the case could come as soon as Wednesday and may be conducted by video conference with a judge, a spokesman for the U.S. Attorney’s office said.
On the morning of the attack, Ullah posted on his Facebook page, “Trump you failed to protect your nation.”
Ullah’s passport, which was recovered from his home, had handwritten notes, including one that read, “O AMERICA, DIE IN YOUR RAGE.”