It happened on February 4 at the Sunoco gas station located on the 1800 block of Oregon Avenue.
The suspect was captured on surveillance video entering the store at 5:45 p.m.
He approached an employee at the counter and pointed a handgun, demanding money.
After employee placed an unknown amount of cash into a red bag, the gunman then fled the store heading east on Oregon Avenue towards 18th Street.
Police describe the suspect as a black male, 25 years-old, 5'10" tall with a thin build. He was wearing a gray hooded jacket with a white inner lining, dark colored pants, pink shoe laces, black scarf or bandana covering face, and armed with a handgun.
If you see this suspect do not approach him, contact 911 immediately.
Anyone with information on this robbery should call police at 215.686.TIPS (8477) or text a tip to PPD TIP (773847).