Police are looking for a man who wore a gorilla mask and robbed a convenience store at gunpoint Sunday night.

The robber entered 7-Eleven, 1609 S. 1100 East, about 9:15 p.m. and pulled a 7-inch buck knife on the clerk. The man was wearing a gorilla mask with black fur that was cut in a Mowhawk style, a police report stated.The masked robber demanded money from the cash registers and then ran out of the store with a small amount of cash.