GRAVENHURST, Ont. -- Provincial police are investigating a single vehicle crash on Highway 11 near Gravenhurst, Ont., that left one person dead and three others in hospital.

A release from the Bracebridge, Ont., OPP says a northbound vehicle lost control and rolled into the ditch Thursday evening.

Police say one of the four people in the vehicle died at the scene.

Two others were flown by Ornge air ambulance to a Toronto-area trauma centre with serious injuries, and the third person was treated for non-life threatening injuries at a local hospital.

No other information was immediately released.