According to police, the person went to the Prospect Corner Store at 400 Main St. in Prospect Borough on Nov. 11 at around 6:41 p.m.
Police said the suspect brandished a firearm and demanded money from the cash register.
Download the FREE WPXI News app for breaking news alerts.
The alleged robber is described as wearing black sweatpants with red writing, black tennis shoes, a blue winter coat, a light-blue winter hat and yellow gloves.
Anyone with information is asked to contact the Pennsylvania State Police Butler Station at 724-284-810.Follow Channel 11 News on Facebook and Twitter. | Watch WPXI NOW
Husband and wife teachers fired in Arizona after students discover OnlyFans content S1 person hospitalized, others injured after crash at gas station in Pittsburgh Women arrested for allegedly stealing perfume worth over $22,900 from Pittsburgh-area mall VIDEO: Witnesses: Man steals car from repossession lot in McKeesport, pulls employee from vehicle DOWNLOAD the Channel 11 News app for breaking news alerts