Police and paramedics are on scene of a two-vehicle crash on Highway 400 northbound.
The crash happened around 9 a.m. Thursday.
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Both the fast and middle lanes are blocked just south of Mapleview Drive, said Sgt. Kerry Schmidt of the Ontario Provincial Police.
Tow trucks were on-scene at 9:30 a.m. and Schmidt said the highway should open within the next hour.
