Muhammad Shahzeb Khan, 20, also known as Shahzeb Jadoon, was arrested on Wednesday on charges filed in the United States, the department said.
“The defendant is alleged to have planned a terrorist attack in New York City around October 7 of this year with the stated goal of slaughtering, in the name of (the Islamic State), as many Jewish people as possible,” Attorney General Merrick Garland said in a statement.
“Thanks to the investigative work of the FBI, and the quick action of our Canadian law enforcement partners, the defendant was taken into custody,” he said.
According to the criminal complaint, Khan planned to travel to New York and carry out a mass shooting in support of IS at a Jewish center in Brooklyn on the anniversary of the October 7 Hamas attack on Israel.
He revealed his plans in conversations with conspirators who were undercover law enforcement officers, it said.
Khan was taken into custody by Canadian authorities in the town of Ormstown some 12 miles (19 kilometers) from the US-Canada border. The Justice Department said it will seek his extradition from Canada.
Khan is charged with attempting to provide material support and resources to a designated foreign terrorist organization. He could face up to 20 years in prison if convicted.