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Explosions at a Canadian propane facility forced thousands of people to evacuate, and witnesses described an enormous fireball that lit up the sky for kilometres. One firefighter died.
Firefighters were battling blazes at the Sunrise Propane Industrial Gasses facility hours later.
A worker at the plant was unaccounted for, Toronto police said. Some residents suffered minor injuries.
The explosions blew out windows blocks away and also shut down Canada's busiest highway and a part of the subway system, jamming traffic.