Canada firefighters brave extreme heights to put out CN Tower fire

Firefighters in Canada's largest city hiked partway to the top of the world's third-tallest tower and through a narrow crawlspace to put out a smouldering fire early Wednesday. The fire broke out at about 4 am (0800 GMT) inside the antenna atop the CN Tower in Toronto, and was extinguished a few hours later.
No injuries were reported and the cause of the fire is not yet known. But officials said insulation around wiring in an electrical conduit inside the mast was burnt. "It was likely started by a short circuit," Toronto Fire Services district fire chief Stephan Powell told AFP. Powell described how firefighters took elevators to the main observation deck, then transferred to another set of elevators to a secondary observation platform called SkyPod at the base of the antenna.