COLUMBIA -- Columbia police are investigating a robbery of a pizza delivery driver. 

It happened at about 7:45 p.m. Monday in the 600 block of Ridgeway. 

The Pizza Hut delivery driver was making a delivery on Ridgeway. When he got out of his vehicle, two black men approached him demanding pizza and money. 

One of the men implied he had a gun but never showed it. 

Police described the robbers as black men in their mid-20s with dark clothing. 

The man who claimed to have had a gun was described as having a heavy build.