A head-on collision on Highway 9 sent six people to hospital last night.
The collision happened at around 6:45pm along Highway 9 near 10 Sideroad just south of Tottenham.
Members of the OPP responded to the crash and were later joined by members of the Peel, York and Simcoe Paramedic Services.
Officials with the OPP say a GMC SUV and Ford pick-up truck collided when one of the vehicles crossed the centre line and drifted into oncoming traffic.
A third vehicle was involved when it struck debris from the initial accident.
However, nobody in that vehicle was injured.
The driver and the passenger of the same vehicle had to be airlifted to a Toronto hospital.