NEW YORK (AP) - A federal judge has ordered an anonymous jury for the upcoming trial of a New York City man accused of plotting to attack the city's subway system with homemade bombs.

The judge made the ruling Wednesday. Prospective jurors will be assigned a number, and their names will be kept secret from lawyers and the judge.

The Daily News says prosecutors requested the extra security, citing the "extraordinarily compelling facts" surrounding the case.

Adis Medunjanin (ah-DEES' may-DOON'-yah-neen) is accused of plotting with two accomplices to bomb subway lines near the eighth anniversary of 9/11. He's also accused of trying to recruit a fourth person to travel to Pakistan "to wage violent jihad."

Authorities have called it one of the most serious terrorism threats since 9/11.

Medunjanin has pleaded not guilty.