Overview
- Military officials say the fire began during routine live‑grenade training on the automatic grenade launcher (AGL) range and was first detected on Saturday, Oct. 17.
- A sudden change in wind direction and intensity drove the flames roughly one kilometre in 30–60 seconds, overrunning a nearby pairs training area.
- The blaze started inside a designated 'permanent danger area' that prevented firefighters from entering because of unexploded ordnance risks, so it was monitored rather than directly suppressed.
- Four soldiers were killed and 39 were injured, with 27 still hospitalized and many in critical condition; the dead have been publicly identified by the military.
- Three concurrent investigations are under way — the Canadian Forces National Investigation Service, a military board of inquiry, and Alberta’s medical examiner — and officials have received offers of external burn‑care assistance while any procedural or accountability changes await the probes' findings.