Ottawa police have released photos of a possible suspect in a stabbing on Rideau Street Saturday afternoon.

Police responded to the 100 block of Rideau after getting multiple 911 calls around 3:55 p.m.

A 17-year-old boy had been stabbed in the throat and he was taken to hospital in serious condition.

The suspect then fled on foot down Rideau. He's described as a black man wearing a grey hooded sweatshirt with a black vest on top, as well as blue/grey pants, bright blue Adidas running shoes, tinted glasses and a goatee.

Police have not made any arrests.

Anyone with information is asked to call the central investigations unit at 613-236-1222, ext. 5166. Anonymous tips can be submitted by calling Crime Stoppers toll-free at 1-800-222-8477.