Fire crews make their way to battle hotspots at the Canadian Forces Base Wainwright, in Wainwright, Alberta. (EPA Images pic)WAINWRIGHT: Four soldiers were killed and dozens injured in a fire at a military base in Alberta province, one of the worst peacetime tragedies to hit Canada's armed forces on home soil, prime minister Mark Carney said Sunday.

Carney made the solemn announcement without providing details on what caused the fire at Canadian Forces Base Wainwright on Saturday.

"It is with deep sadness that I can confirm, at this time, that four service members have lost their lives and that their loved ones have been notified," Carney said in the capital Ottawa, adding that "dozens of others have been seriously injured."