Four Canadian soldiers were killed and dozens more injured in a fire during a training exercise at Canadian Forces Base Wainwright in Alberta on Saturday afternoon, prompting an ongoing investigation and widespread tributes from family, friends, and officials.

The fallen soldiers—Sergeant Morgan Wong, 26; Private Shaun Farrell, 23; Private Aidan Goulding, 23; and Private Hayden Lykkemark, 19—were all members of the 3rd Battalion, Princess Patricia’s Canadian Light Infantry. Thirty-nine others were injured, with 33 still hospitalized as of Monday, including 19 in critical condition, many suffering serious burns.

The military has said the incident was caused by a grass fire that spread rapidly due to gusting winds during training, engulfing the battalion. Details on how the soldiers sustained their injuries have not been fully disclosed. Authorities have launched three investigations, including a military board of inquiry aimed at identifying how to prevent similar tragedies in the future.

Prime Minister Mark Carney addressed the House of Commons on Monday, announcing that 50 investigators were deployed on the ground at CFB Wainwright. Carney also paid tribute to each of the four soldiers, highlighting their character and dedication. He described Sgt. Wong’s family as remembering him as “someone who was always there for those who needed him,” while Pte. Goulding was recalled for his resilience and humor in difficult times. Pte. Goulding’s family said he left a promising career as a mechanic to join the military, with aspirations to join Special Operations Forces and later CSIS.

Pte. Lykkemark and Pte. Farrell, who were close friends, were also remembered for their strong bonds and distinctive personalities. Lykkemark’s high school rugby coach praised the soldier’s caring nature and leadership on and off the field. Those close to Farrell described him as a devoted and loyal individual known for his strategic skill at chess and his commitment to a military career. City officials in Prince Albert, Saskatchewan, where Farrell was from, said he would be honored as a hometown hero.

Relatives and friends portrayed all four victims as young men deeply committed to serving their country and communities. Some accounts suggested that the soldiers were trying to assist others when injured in the blaze.

General Jennie Carignan, Chief of the Defence Staff, indicated that the inquiry into the incident could take up to a year, but committed to making the findings public.

At CFB Wainwright, a growing memorial has been established near the base’s front gates, where photos of the deceased are surrounded by flowers, alongside tributes supporting those who remain hospitalized. The community, military, and government officials continue to express condolences as the affected families and comrades cope with the loss.