One man was seriously hurt Monday evening in a crash on the Conestoga Parkway.

The crash occurred in the westbound lanes of the highway, south of the Ottawa Street exit, and prompted OPP to close the westbound stretch for several hours.

A 22-year-old man was taken to hospital with life-threatening injuries.

Only one vehicle remained at the scene, but OPP believe a black Mercedes may have also been involved and are attempting to locate it.