Six people have been seriously injured in a multi-vehicle crash just north of Burlington.
Provincial police say the crash occurred on Highway 6 between the 5th and 6th Concession Friday evening.
There were multiple head-on crashes involving five vehicles.
Two people were taken to hospital with life-threatening injuries and four suffered serious injuries.
Police say possible impairment is being investigated as a contributing factor.
Highway 6 is closed between the 5th and 6th Concession.