Several people have been injured following a crash northwest of Toronto.

The crash happened in the area of King and Queen Streets in Bolton, shortly after 8:30 a.m. on Wednesday.

Provincial police say the driver of a northbound dump truck lost control on Queen Street. It struck a Honda CRV, which became tangled in the truck's bumper. The pair of vehicles then struck several others in the area before the truck veered northeast and hit a traffic signal, coming to rest on King Street.

A total of 12 vehicles were damaged in the incident. One was a delivery truck, which was pushed off the road and came to rest against a tree, just short of an outdoor play area at a daycare.

Police said five people had to be taken to hospital as a result of the crash, including one who was trapped in a vehicle for approximately half an hour. The extent of the injuries ranged from minor to serious, officers said. Four other people were checked out by paramedics at the scene.

At the time of the crash, more than a dozen vehicles, including ambulances, fire trucks and damaged cars, could be seen from the CTV News chopper.

Police said the area would be closed for several hours for an investigation.

Several people injured in multi-vehicle crash

Bolton crash