By CBS3 Staff

PHILADELPHIA (CBS) — The FBI is searching for a serial bank robber in Center City.

Federal authorities believe the suspect has committed seven robberies since Aug. 30.

READ MORE: Philadelphia Police Officer Has Strong Message For Son's Killers After Hyram Hill Killed In Targeted Shooting

The latest hold-up was at the PNC Bank near 18th and Market Streets on Dec. 17.

READ MORE: Manor College Students Past, Present 'Very Angry And Frustrated' About Ukraine-Russia Tensions

Investigators say the suspect wore an orange safety vest on top of his black puffy jacket.

MORE NEWS: Philadelphia Police Officer Injured After Being Dragged By Vehicle During Traffic Stop: Police

Call the police if you have any information.