A 19-year-old male is in critical condition in a Toronto hospital after an ATV crash on Sunday night.

Grey County OPP say they were called to a home on Concession 6 in Chatsworth shortly after 9 p.m. when the teen failed to return home before dark.

He was found around 10:30 p.m. in a ditch at the corner of Concession 6 and Side Road 6. The ATV had reportedly collided with a tree.

The rider suffered serious, life-threatening injuries - though he had been wearing a helmet - and was airlifted to a Toronto hospital.

The OPP West Region Technical Traffic Collision Investigation Unit is assisting with the investigation.