Two pedestrians are critically injured following a collision at a mall in Pickering on Friday morning, police say. Durham Regional Police said they are currently investigating at The Shops at Pickering City Centre, which is located near Highway 401 and Liverpool Road. The circumstances surrounding the collision are unclear at this time. Police said Air Ornge is on its way and to expect a heavy police presence in the area. Ornge said it is bringing on patient to St. Michael’s Hospital with critical injuries after being struck by a vehicle.