The Ontario Provincial Police’s technical investigators and collision reconstructionists are investigating a fatal collision on the eastbound lanes of Highway 401.
Police say the collision happened between mile markers 556 and 566 and involved two tractor-trailers and one passenger vehicle.
OPP say they are looking for anyone who has relevant information, dash cam footage or who may have witnessed the collision.
According to police, one person was pronounced dead at the scene.
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One person was brought to the hospital with unknown injuries.
One westbound lane is now open.
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