OPP say up to 50 vehicles involved in collisions on Hwy. 401 in eastern Ontario CTV NewsAbout 50 vehicles involved in ‘many’ collisions on Highway 401 Global News50 vehicles involved in crashes as Hwy. 401 comes to standstill toronto.citynews.caWestbound lanes of Highway 401 closed in Odessa due to collision thewhig.comHighway 401 closed east of Toronto after series of collisions involving 50 vehicles thestar.com
