A two-vehicle crash on County Road 10 at the 5th Sideroad in Essa Township has resulted in injuries to both drivers.
Ontario Provincial Police said the collision occurred just before 11 p.m. on Monday.
Both drivers were the lone occupants. They were transported to a local hospital, one with non-life-threatening injuries. The other motorist was later airlifted in life-threatening condition to a Toronto hospital
The collision remains under investigation.
Investigators are looking for witnesses to this collision. If you have dash camera footage, surveillance footage or can offer any information relating to this collision, please contact the Nottawasaga OPP at 705-434-1939 or the OPP at 1-888-310-1122.