Cochrane RCMP have cleared the scene of the accident at the conjunction of Hwy. 22 and Hwy. 567 and it's now passable in both directions.

A 22-year-old female was transported by STARS to an area hospital in critical condition, states Constable Lauren Mowbray, RCMP media relations officer, in an update.

A second adult passenger was transported by ground ambulance to an area hospital with non-life-threatening injuries. 

The five other involved parties were treated by EMS on the scene and released.

RCMP continue their investigation into the cause of the collision.