Four service members were killed and dozens injured after a fire Saturday at a military

The incident is among the deadliest recent emergencies involving Canada’s armed forces and has prompted an immediate response from military and civilian authorities. The fire occurred at the base in Alberta, though officials have not yet released details about what caused it or where it began. Emergency crews treated and transported injured personnel, while authorities worked to account for everyone affected. The identities of those killed and the full number of injured service members have not been disclosed. Investigators are expected to examine the origin of the blaze, the facility’s safety systems and the circumstances surrounding the deaths. Officials have not indicated whether the fire was accidental or linked to any security threat. Further information is expected as the investigation proceeds and families are notified.