OTTAWA -- One person was airlifted to hospital with serious but non-life threatening injuries after a multi-vehicle crash on Highway 15 north of Smiths Falls.

Ontario Provincial Police tell CTV News Ottawa at least three vehicles were involved in the crash, including a dump truck and a tractor-trailer.

At 11 a.m., a dump truck remained on its side along the side of the highway, and a tractor-trailer was in the ditch.

Air Ornge transported one person to hospital.  No other serious injuries were reported

The cause of the crash remains under investigation.