MONTREAL -- Montreal police are on the scene of a very serious collision between a motorcycle and truck on Wednesday afternoon.

The motorcycle rider, a 50-year-old man, is in critical condition, police said. He was taken to hospital in an ambulance, unsconscious, and his life remains at risk.

The accident happened near the exit from Jacques-Cartier bridge, on De Lorimier Ave. near Logan St.

Police have stopped traffic in the area.

motorcycle accident in Montreal

This is a developing story that will be updated.