Ontario Provincial Police say a driver is "lucky to be alive" after they were ejected from the vehicle when it hit a ditch south of Ottawa.

Police say other drivers contacted Grenville OPP after seeing an SUV driving erratically on County Road 20 in North Grenville late Friday night.

"Vehicle hit a ditch and driver was located meters away," police said.

The driver was treated for minor injuries.

Police say the driver is facing a charge of impaired driving.