MILTON (Oct 20, 2008) -- A serious crash near Milton snarled Highway 401 traffic for several hours Saturday. Just after 3 p.m., Ontario Provincial Police closed eastbound lanes at Highway 25 after a Ford Taurus driving on the right shoulder lost control and hit a guard rail, said Sgt. Dave Woodford. The vehicle flipped, ejecting the 19-year-old driver. He and a passenger were airlifted to Hamilton General Hospital with life-threatening injuries. Two other passengers were taken to hospital with non-life-threatening injuries.