A fast-moving wildfire swept through an outdoor military training exercise at CFB Wainwright in Alberta, killing four Canadian service members and injuring 39 others. Prime Minister Mark Carney ordered flags lowered to half-staff, calling it one of the worst peacetime tragedies for Canada's military on domestic soil. Subscribe: http://smarturl.it/AssociatedPress Read more: https://apnews.com This video may be available for archive licensing via https://newsroom.ap.org/home