Canada, Toronto: Explosions from a transformer fire thundered through Toronto's financial district for hours on Monday afternoon, sending clouds of smoke in the air and forcing police to close off a section of the downtown area.
A fire in a transformer in an underground electrical vault caused explosions that continued intermittently for hours, Toronto Fire Captain Adrian Ratushniak told Reuters.
The blast shut down several blocks along King and Bay streets during evening rush hour. Police and fire crews were on the scene and there were no injuries reported.
The cause of the fire, which prompted the evacuation of a bank tower at 20 King St. West, was not yet known and would be investigated, Ratushniak said.
Previous, similar fires have been caused by water, deteriorating electrical connections or aging transformers, he said.