Fatalities confirmed after major fire at Alberta military base; Ottawa withholding casualty count

A major fire that ignited in the training area of Canadian Forces Base Wainwright on Saturday afternoon killed and injured Canadian Armed Forces members, Defence Minister David McGuinty confirmed — though Ottawa has not said how many.

The fire broke out around 4 p.m. local time on Oct. 17 and spread rapidly beyond the training area into the surrounding rural district, according to a National Defence and Canadian Armed Forces news release issued early Sunday. Military and civilian emergency crews responded.

McGuinty confirmed Saturday evening that people had been killed and injured, calling the situation "very, very active and delicate." Global News, citing multiple unnamed Canadian military sources, reported at least seven people killed and dozens more injured — figures officials have not confirmed. The military said casualty details will not be released until next-of-kin notifications are complete.

Prime Minister Mark Carney wrote on X Saturday that a "serious incident creating a major fire" had occurred at the base, adding that the federal government was working with Alberta and local authorities and that he was in direct contact with Alberta Premier Danielle Smith. Chief of the Defence Staff Gen. Jennie Carignan called it "a profoundly difficult moment for the entire Canadian Armed Forces."

Strong winds complicated the response, with gusts reaching up to 100 kilometres an hour during the day, according to reporting on the incident. By 11 p.m., the Municipal District of Wainwright said the fire was being held and that property and critical infrastructure were protected. No evacuation order had been issued.

Hospitals in Edmonton activated a mass-casualty response. Global News reported patients were being transported to Edmonton, about 180 kilometres northwest, after facilities near the base were overwhelmed. Dr. Warren Thirsk, an emergency physician at the Royal Alexandra Hospital, told the CBC that "it is more patients than any of us want to count right now."

The cause of the fire has not been established. Global News reported that military sources described a live-fire training exercise striking a gas line or gas well on the base — an explanation authorities have not confirmed. The RCMP is involved in the investigation.

The fire also disrupted weekend voting: Elections Alberta closed an advance polling location at the Wainwright Communiplex after the fire spread near the base, two days before Alberta's Monday referendum.