Rock thrown at moving vehicle causes serious crash near Toronto [Video]

Police have released new video footage that shows a vehicle speeding through a red light and crashing into another vehicle in Markham after its driver was reportedly struck by a rock and rendered unconscious.

The incident is one of 20 similar occurrences in which rocks have been thrown at moving vehicles in Markham since September, according to police.

Eleven of those incidents have taken place along Highway 48 and are being investigated by Ontario Provincial Police while the nine remaining incidents took place within the jurisdiction of York Regional Police.

In the dashcam footage, released by police on Tuesday, a vehicle is shown approaching a red light at a high rate of speed at around 8:45 p.m. on Sept. 20.

The vehicle then enters the intersection and slams into the front of a car.

Police say that investigators believe a rock was thrown at the driver from the opposite lane …