Takeoff On Wrong Runway

Oct. 30/14 (reported Feb. 16/2015-The West Jet Boeing 737 (flight 1232, C-GWJO) departed RWY 24 R at Toronto/LBPIA when the aircraft was cleared for takeoff on RWY 24 L. ATC observed the aircraft on the takeoff roll for 24 R and instructed the aircraft to continue the takeoff. There was no conflicting traffic or risk of collision. The operator is investigating the incident through their SMS.