A 3 vehicle collision late last night (nov4) has left a portion of the northbound 400 closed.
Police indicate 2 passenger vehicles and transport were involved.
The collision happened on the 400, north of Teston Road when one vehicle travelling at high rate of speed rear ended an SUV causing it to rear end a tractor trailer.
The driver and passenger of the SUV were sent to hospital in life threatening condition.
All northbound lanes of the highway are expected to remain closed just south of the King City OnRoute until approximately 8 o’clock this morning (nov5).
