(Moorhead, MN) -- Moorhead Police are asking for your help in finding the person responsible for robbing a pizza delivery driver Thursday evening in the city. Authorities say at approximately 5:44 PM, officers were sent to the 1900 block of 18th Avenue South for a report of a robbery. As the pizza delivery guy was waiting for a customer, the suspect approached him with a knife and demanded his wallet. The suspect is described as a Hispanic male between 20 and 30 years old who is 5'6" tall. He weighs approximately 135 pounds with dark short hair and a scruffy beard. He was last seen wearing a shirt with reddish trunks or shorts, running around the west side of an apartment building to the south.