A man is in life-threatening condition in hospital after being assaulted in North York.

Police say they were originally called to Yonge Street and Wedgwood Drive, just south of Steeles Avenue, to a man who fell off a bike around 11:45 p.m. Friday.

An investigation determined the man was riding a bike when an unidentified person struck him with an object, causing him to fall off. The suspect then fled on foot.

Officers say reports indicate the assault happened with a golf club. He was taken to hospital with life-threatening injuries.

Police are looking for a suspect wearing dark clothing. No other details have been made available.