At least five people have been injured, some critically, in a multi-vehicle collision in wintry weather on a busy southern Ontario highway.
Police reopened the westbound lanes of Highway 401 between Newcastle and Newtonville around 11:40 p.m. ET and the eastbound lanes a couple of hours earlier.
Provincial police said five people were transported to hospital, two with life-threatening injuries, and one was re-routed to Sunnybrook Medical Centre in Toronto.
