UPDATE: Matthew B. Wilson, 27, was taken into custody and charged with felony robbery.
The man robbed the Northwest Bank on West High Street around 9:30 a.m., telling a clerk it was a robbery while demanding cash.
A note or weapon was not displayed.
The man left with cash, walking to the rear exterior of the building and fleeing on foot.
Anyone with information about the man is asked to contact Susquehanna Regional police at 717-426-1164, or submit a tip via this CrimeWatch page.