Two people pulled an Oshawa man from a burning car after it collided with a pickup truck just south of Port Perry, Ont. early this morning, according to Durham Regional Police.

The 27-year-old driver suffered serious, life-threatening injuries, police said. He was airlifted to Toronto’s Sunnybrook Health Sciences Centre, where he remains in stable condition.

The 50-year-old driver of the pickup truck was treated for minor injuries at a local hospital and was later released.

Police believe alcohol and speed may have been a factor in the head-on crash. It happened on Simcoe Street around 12:35 a.m.

Investigators say the vehicle operated by the Oshawa man "unexpectedly" entered the northbound lane and struck the pickup truck.

Anyone with information about the collision is asked to contact the Traffic Services Branch at 1-888-579-1520 , ext. 5267, or Durham Regional Crime Stoppers at 1-800-222-8477 (TIPS).