ATLANTA (AP) – A 21-year-old college student has been indicted on suspicion of giving material support of terrorism, a federal prosecutor said.

Syed Haris Ahmed, a naturalized U.S. citizen who attends Georgia Tech, is being held at an undisclosed location, U.S. Attorney David E. Nahmias said Thursday. He was arrested March 23 and has waived his right to arraignment.

Ahmed’s family immigrated from Pakistan in 1997, The Atlanta Journal-Constitution reported.

It is unclear what Ahmed is accused of doing because the indictment is sealed and authorities provided few details. The charge carries a maximum 15 years in prison and a $250,000 (¤202,500) fine.

“The whole story of this case is going to come out where it should, in a court of law,” Nahmias said.

FBI agent Gregory Jones said the bureau was never aware of any immediate danger posed by the suspect to the Atlanta area.

Ahmed’s court-appointed attorney, Jack Martin, did not return messages left Thursday.