The southbound collector lanes of Highway 400 in Vaughan are expected to be closed during the afternoon rush hour due to a collision.
Ontario Provincial Police say a dump truck was involved in a single-vehicle crash on the highway near Highway 7.
The collision resulted in a diesel spill, forcing the closure of the collector lanes, OPP say.
The highway was initially expected to reopen at 6 p.m. but OPP say the closure is expected to last until 7 p.m. as a barrier also needs to be repaired.
Meanwhile, the driver of the truck was transported to the hospital with minor injuries.
The cause of the crash is unknown.