DENVER (KDVR) -- Police are looking for an alleged assault suspect in downtown Boulder on Thursday afternoon.

Victims and witnesses told police that he had "assaulted people with a chain," the Boulder Police Department said in a post on X.

Police said at 12:22 p.m. that he was last seen in the 4800 block of Baseline Road.

The department shared a photo, showing a man with brown hair and facial hair on a red bike, wearing a black t-shirt, khaki-colored cargo pants and a gray backpack.

Police are looking for a man who witnesses said assaulted people with a chain in downtown Boulder.

Anyone who sees the suspect is urged to call 911.

This article will be updated as more information becomes available.