Police need the public's help in finding the trio responsible for robbing a man.

The incident happened on Christmas Eve just after 10 p.m. on the 1300 block on University Avenue.

Police say two men ran up to the victim from behind and assaulted him while a third man acted as a lookout.

One of the suspects then allegedly took out a gun and stole $400 and a six-pack of beer from the victim.

Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.