A “serious incident” at a military base in Alberta on Saturday caused a major fire and left people dead and injured, Canadian officials said. “I’m saddened to share that there have been both fatalities and injuries as a result of an incident on the base,” Defense Minister David McGuinty said at a news conference. Prime Minister Mark Carney of Canada said in an earlier statement that a “serious incident creating a major fire” had occurred. In a post on social media, Danielle Smith, the premier of Alberta, described it as a “significant and tragic fire” that was “affecting many of...