Toronto police share a photo of a 3-vehicle collision on the Gardiner Expressway on April 12, 2025. Toronto police are warning of major delays on the Gardiner Expressway following a 3-vehicle collision. In a social media post, police say just before 5:30 p.m., three vehicles were involved in a crash on the Gardiner near Dufferin Street. Police say one vehicle is sideways, but there are no reported injuries. They did not specify which direction of the Gardiner the crash happened on, but police are warning drivers to expect “major delays” while they work to clear the vehicles from the roadway.