The accused terrorist who detonated a homemade bomb in a Times Square tunnel in December made chilling predictions of additional attacks, chanting, “More is coming’’ while behind bars, the feds revealed Tuesday.

Akayed Ullah — a 28-year-old Bangladeshi native and cabbie who was radicalized by online ISIS propaganda around 2014 after coming to the US — also told a correction officer, “You started this war, we will finish it. More is coming, you’ll see,” according to Manhattan federal prosecutors.

He added to a law enforcement officer, “System is not working, think who will come after me,” according to the court filing.

The feds revealed the alarming statements while objecting to Ullah’s lawyers’ request to dismiss one count of his six-count indictment, which includes allegations that he acted in support of ISIS.

The suspect, who was living in Brooklyn at the time of the attack, faces life in prison for allegedly strapping a homemade pipe bomb to his body to detonate it during the busy morning rush hour in the Port Authority tunnel Dec. 11.

But instead of harming innocent commuters, Ullah only hurt himself.

Surveillance footage released after the attempted attack shows Ullah walking through the Port Authority tunnel when a big cloud of dust emerges. The people around Ullah scatter for safety, and he is left lying on the floor, where the police found him.

The feds say Ullah spoke freely to investigators after the attempted attack, telling them that he “did it for the Islamic State” and admitting that he chose a busy weekday morning in order to terrorize as many people as possible.

In raiding his Brooklyn home, investigators also found a passport scrawled with the words, “O AMERICA, DIE IN YOUR RAGE,” in all capital letters.

The same message was written inside a cardboard box found in his apartment that contained metal screws like the ones found in the subway following his attempted attack, they said.