The accident occurred on the w / d stretch Oshawa CP Rail, Canada, on the discharge line of cars GM.
Employee accidentally unhooked the three cars that do not have emergency brakes. Unloading platform was tilted and cars started moving, passing 150 meters and typing decent speed, there was a convergence of the rails. Pickups spilled onto parked before new cars. Affected about 300 cars. What will happen now with the employee who made a mistake, it is not clear.