Provincial police are warning drivers to avoid sections of Highway 11 in both directions in Orillia as they investigate a fatal multi-vehicle collision.

One person has died and multiple people were injured in a multi-vehicle collision in Orillia, Ont., on Friday, Ontario Provincial Police say. Orillia Fire Chief Chris Ferry said about 50 vehicles were involved.

Police say one person is dead and several others injured after a multi-vehicle crash on Highway 11 near Orillia, Ont., in snowy weather Friday morning.

A multi-vehicle crash in Orillia, Ont. has forced the closure of a part of Highway 11, as police work to remove the cars from the road.

All southbound lanes of Highway 11 in the Orillia, Ont., area shut down Friday morning after multiple crashes were reported on the snow-covered roadway. The highway is closed for an unknown duration due to multi-vehicle collisions, according to Ontario Provincial Police.

A multi-vehicle collision on Highway 11 in Orillia on Friday morning has closed the highway in both directions, OPP said. Orillia Fire said they were being helped by Oro Medonte Fire, Simcoe County Police, and OPP at the scene in the southbound lanes between Old Barrie Road and Coldwater Road.