A woman is in critical but stable condition after a crash on Line 86 west of Dorking.

Police say the collision involving a transport truck and a car happened around 1:50 a.m. Monday on Wellington Road 86.

A passerby pulled the female driver from the car before both vehicles were consumed by fire.

The driver of the car, Juanita Vongsouphath, 22, of North Perth was transported to a local hospital, then airlifted to a London hospital in critical but stable condition.

The driver of the transport truck has been identified as Michael Galbraith, 23, of North Perth.

OPP continue to investigate.

Contact police if you witnessed the crash.