A semi unit rollover on Highway 2 about five kilometres south of Meacham has closed the road.

The driver of the semi was taken to hospital via STARS air ambulance with undetermined injuries.

The highway is blocked for a five kilometre radius around the crash site. No evacuations have taken place and there are no buildings in the immediate vicinity of the collision.

Motorists in the area can expect delays.

Sask Environment is in charge of organizing a clean up crew.