Several people have been taken to Toronto trauma centres with serious injuries following a two-vehicle crash on Highway 427, Ontario Provincial Police say. The incident happened just before 4 a.m. on Highway 427 northbound near Highway 401. In an email to CP24, police confirm four people were transported to trauma centres with serious, non-life-threatening injuries, while another person was taken to a local hospital with minor injuries. A sixth person was also assessed at the scene and released. The on-site investigation remains underway and there is no estimated time for the highway to reopen