A multi-vehicle pileup on Highway 400 in Barrie involves between 50 and 70 vehicles, including several transport trucks, national media is reporting.
The crash occurred on the southbound lanes of Highway 400 between Mapleview Drive and Innisfil Beach Road.
Both the northbound and southbound lanes are closed and drivers are being asked to avoid the area.
Check out this video of the crash scene from OPP Sgt. Kerry Schmidt:
