Canadian officials said Sunday that four service members were killed and dozens more injured after a fast-moving fire swept through soldiers conducting live-fire training at a military base in Alberta.

The deadly fire erupted Saturday at Canadian Forces Base Wainwright, where a sudden shift in powerful winds sent flames sweeping toward troops training in the area, according to The Associated Press.

Officials said 39 people were hospitalized, including 19 in critical condition. Eight others were listed as stable, while 12 were being treated for less serious injuries.

Maj. Gen. Wade Rutland, commander of the Edmonton-based 1st Canadian Division, said military officials had been aware of the fire for hours but believed it was contained enough for training to continue, AP reported.

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"The fire was a kilometer away when the wind shifted. That is not normal for a fire to move a kilometer in 36 seconds," Rutland said.

Investigators have not yet determined what sparked the fire.

Those killed were identified by the military as Sgt. Morgan Wong and Privates Shaun Farrell, Aidan Goulding and Hayden Lykkemark, AP reported.

Wong was a member of the Loyal Edmonton Regiment, while the three others belonged to the 3rd Battalion, Princess Patricia’s Canadian Light Infantry. All four were serving with the Edmonton-based battalion.

Prime Minister Mark Carney called the blaze one of the worst peacetime tragedies to strike Canada's armed forces on home soil, according to Reuters.

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"I cannot recall such an incident in my short time for sure as a minister, but I cannot recall an incident like this in recent memory," Canadian Defense Minister David McGuinty told reporters.

The 39 injured people were being treated at hospitals in Wainwright, Edmonton, Red Deer and Calgary.

Air ambulances from Edmonton and Saskatoon were also sent to the base Saturday to help transport patients.

Several hospitals across Alberta activated a "Code Orange," an emergency designation used for mass-casualty incidents, as medical personnel prepared to treat the wounded.

Military and civilian firefighters battled the flames through the night as intense winds fueled the fire.

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The fire crossed the base perimeter into the surrounding area, but officials said no evacuation orders were issued. By Sunday, local authorities said the blaze was not expected to spread beyond its existing boundaries.

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Carney announced that flags would fly at half-staff on federal buildings nationwide in honor of those killed and injured. 

He also praised emergency crews who battled the flames through the night.

Fox News Digital's Michael Sinkewicz, Reuters and The Associated Press contributed to this report.

Canadian officials confirmed fatalities and injuries following a serious incident that sparked a major fire at one of the country's busiest military bases Saturday.

Canadian Defense Minister David McGuinty confirmed the incident at Canadian Forces Base Wainwright in Alberta, a major Army training installation.

He did not immediately specify how many people were killed or injured.

"I’m saddened to share that there have been both fatalities and injuries as a result of an incident on the base," McGuinty told reporters.

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McGuinty said the fire was still burning Saturday evening.

"I cannot recall an incident like this in recent memory," he added.

The municipality of Wainwright said the fire had spread beyond the military base's perimeter into the surrounding area.

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However, local officials said no evacuation orders had been issued.

Canadian Prime Minister Mark Carney addressed the incident in a post on X.

"A serious incident creating a major fire has occurred at CFB Wainwright, in Alberta," Carney wrote. "Our thoughts are with all the brave women and men affected."

Alberta Premier Danielle Smith described the incident in a post on X as a "significant and tragic fire" that affected military personnel at the base.

The Canadian Armed Forces, Royal Canadian Mounted Police (RCMP) and local emergency personnel were responding to the incident, according to the Canadian Broadcasting Corporation (CBC).

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"The Canadian Armed Forces, the Department of National Defence, partners across the federal government, including public safety, are working with the government of Alberta and municipal governments to mobilize all necessary support," McGuinty said.

Canadian Forces Base Wainwright is located roughly 130 miles east of Edmonton and had approximately 1,310 military and civilian personnel stationed there in 2021, according to census figures cited by Reuters.

The nearby town of Wainwright has a population of approximately 6,600.

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It was not immediately clear what caused the incident.

Fox News Digital's Bradford Betz and Reuters contributed to this report.