A serious crash on the eastbound 401 in Milton has sent 2 people to hospital, 1 with life threatening injuries.
The 3 vehicle crash involving a tractor trailer closed the eastbound lanes at Highway 25 around 5:30.
The OPP say one victim was airlifted to hospital with critical injuries and another person suffered less serious injuries.
OPP sergeant Kerry Schmidt says one of the vehicles and the tractor trailer went through a guard rail and down a steep embankment.
The closure lasted until 10:30 p.m. when all lanes were reopened.
— OPP GTA Traffic (@OPP_GTATraffic) January 5, 2016