Ontario Provincial Police say a portion of Highway 9 is now open after a serious crash this afternoon.

It happened just before 4:30 p.m. between the 10th and 11th Concessions in King Township after a truck ran into the back of a tractor trailer. The truck burst into flames on impact.

The driver of the truck, a 77-year-old man from Schomberg, is in critical condition at Sunnybrook hospital in Toronto. The driver of the tractor trailer wasn’t injured.