Pittsburgh Bureau of Police officers from Zone 4 responded to a call of a robbery at a business in the 5700 block of Ellsworth Avenue just after 11:30 p.m. on July 8.
When they arrived on scene they spoke with a male employee who stated he was mopping the floor when an unknown male came into the store and put a handgun to his back.
The suspect demanded cash from the register and grabbed some cigarettes before placing everything in a black plastic bag.
A store manager came out of a back office to observe the suspect running out the front door.
No one was injured.
The suspect was reportedly wearing a black ski mask that covered his face to his nose. He was also dressed entirely in black.
Police are investigating.