A dump truck driver is in critical condition after the vehicle tipped onto its side at a construction site in Prince Albert, Sask. Tuesday afternoon.

Paramedics entered the cab of the truck through the windshield, which had been shattered from the impact.

The 70-year-old man was pulled from the vehicle, put on a spine board and rushed to hospital by ambulance.

Emergency crews said the truck was backing up to unload at the time it fell over.

Construction workers on scene helped stabilize the truck and ensure the site was safe for paramedics.