Blaze that killed 4 on Canadian military base sparked on grenade launcher range

A blaze that killed four soldiers and injured several dozen more on a military base in the Canadian province of Alberta last week broke out on a grenade launcher range during training exercises, officials said Thursday.
The fire sparked Oct. 17 on the automatic grenade launcher range of Canadian Forces Base Wainwright "during routine military training activities," Brig. Gen. Vanessa Hanrahan, the Canadian Forces Provost Marshal, said in a statement Thursday.
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