York Region police say one person has been transported to hospital in serious condition following a tractor trailer rollover on the Highway 27.
Officers were called to the scene around 5:40 p.m. on Monday to the Highway 27 and King Road in Vaughan.
According to officials, two vehicles were involved in a head on collision, and a tractor trailer was rolled over.
Fire crews were called to extricate one person who was trapped in a vehicle.
Police say multiple people were transported to hospital, but only one victim was suffering serious injuries.
Ornge air ambulance were also called, but all patients were taken to hospital via ground.
Roads around the area are expected to be closed until around 9 p.m.
@VaughanFire patient has been extricated and now being transported to hospital.
— Vaughan Fire (@VaughanFire) August 24, 2015