A woman is in hospital in life threatening condition after a head on collision in rural Hamilton Monday morning.

Two vehicles slammed into each other just before 7 a.m. on Highway 6, between Concession 4 West and Concession 5 East, OPP Const. Graham Williamson told CBC Hamilton.

A smaller Nissan collided head on with a large, flatbed truck with equipment in the back, Williamson said. The collision happened in the northbound lanes of Highway 6 with the truck facing south, he said, but police haven’t yet determined which car crossed over into which lane.

It took crews half an hour to pry the driver of the Nissan out of her car before rushing her to hospital with life threatening injuries. Williamson would only say she is 22, and a “resident of this area.”

A third vehicle was also involved in a “peripheral collision,” he said. No other injuries were reported and no one else was taken to hospital.

It is still “way too early” in the investigation to determine the official cause, Williamson said.

“The road is snow covered, but how much of a factor that has yet to be determined,” he said.

Highway 6 North is closed between Concession 4 West and Concession 5 East. Police expect a full closure in the area for at least three hours.

Drivers can get around the closure by taking Centre Road on the east side, and Brock Road to the west.