More than 20 vehicles were involved in a pileup on Highway 401 near Napanee, Ont., this morning.
Both eastbound and westbound lanes of the highway were closed between Highway 41 and Deseronto Road, east of Belleville. But the one westbound lane has now been opened near Highway 41."
There is one serious injury and multiple other minor injuries, according to the Ontario Provincial Police, who are advising that drivers avoid the area.
Fire and ambulance crews remain at the scene and a bus was sent to give stranded motorists shelter from the cold.