A Brooklyn man has been arrested on charges that he tried to help the Islamic State group, in part by encouraging attacks on New York’s subway system.
Zachary Clark was arrested Wednesday and will appear in Manhattan federal court.
Federal authorities say he provided instructions on how to plan attacks on U.S. soil and encouraged Islamic State group supporters to attack well-populated areas.
They say he also posted a manual online on how to build a bomb.
A defense lawyer declined to comment.
Authorities say the 40-year-old Clark this year pledged allegiance to the Islamic State leader who was killed in October and also his replacement.
He was charged with providing material support to IS and distributing information relating to explosives and weapons of mass destruction.
“As alleged, Zachary Clark twice pledged allegiance to ISIS, and posted on encrypted pro-ISIS chatrooms numerous exhortations and instructions on bomb-making and other terrorist acts to be carried out in New York,” U.S. Attorney Geoffrey Berman said on Wednesday. “Thanks to the Joint Terrorist Task Force, Clark now faces serious criminal charges for his alleged support of a terrorist organization bent on killing Americans.”