Lancaster Police say a robber fired a shot while leaving a 7-Eleven store.
The incident happened around 4:30 a.m. at the 7-Eleven in the 600 block of Pleasant Run Road.
Police said the man walked into the store and demanded money. The clerks complied, but, as the robber was leaving, he fired a shot into a wall.
The shot didn't hit anyone and no one was injured.
Police are now reviewing surveillance tape to gather clues. Investigators describe the man as a black male, between 5'10" and 5'11". He fled on foot.