According to Sgt. Don Barker, a man in a hooded sweatshirt and a ski mask entered the store, at 42163 North Ridge Road, about 2:20 p.m.
The man had a black and gray handgun in his pants but apparently did not display it, he said.
The man, who is described as Hispanic, apparently went behind the counter and took about $200 cash from the cash register, Barker said.
The man’s hooded sweatshirt was found on the ground nearby. His ski mask was described as black and blue.