COLUMBIA - The man suspected in a string of bank robberies across South Carolina has been indicted on federal charges.

Documents unsealed Wednesday show a federal grand jury has indicted Jeffrey Patrick Frye on four counts of bank robbery.

Frye was charged earlier this year with holding up a North Charleston bank on Christmas Eve. He is a suspect in a half-dozen other bank robberies across the state. Frye surrendered to authorities in January after a nearly three-hour standoff at a North Charleston motel.

If convicted on all four federal charges, Frye could face 80 years in prison and $1 million in fines. He is scheduled to be arraigned later this month.