Three people have been rushed to hospital in life-threatening condition after a crash that happened on Highway 12 in Whitby Saturday morning.
The Ontario Provincial Police said three people are in life-threatening condition due to the collision and one person is suffering minor injuries.
The highway is closed in both directions between Highway 48 and Thorah Concession Road 2 until further notice.
While the cause of the crash is unkown, the OPP said that there was heavy fog in the area at the time of the collision.