Crashes on both the northbound and southbound Don Valley Parkway caused major delays on the highway during the morning rush hour. A crash involving a GO bus occurred in the northbound lanes of the highway near Dundas Street and police said passengers were on the bus at the time. No injuries were reported. A collision in the same area in the southbound lanes jammed up the highway in that direction. Police have said a collision in the southbound lanes resulted in impaired driving charges. By 10 a.m., both collisions had cleared and traffic was moving again.