(Updated) Highway 401 has been reopened between Woodstock and Kitchener after a fatal collision overnight between two tractor-trailers.It happened 12:30 between Drumbo Road & Oxford Road 3. Both trucks were east bound. One of the drivers was pronounced dead at the scene, while the other was taken to hospital. There’s no word on the cause of this crash, but there were snow squalls in many stretches of the 401 between Woodstock and Milton overnight. Provincial police tell CHCH News both vehicles have been moved from the scene. An environmental response team was called in to clean up a diesel spill that went into the ditch.Image: map of crash zone (Google Maps)Video: Phil Perkins describes the scene