Engine 11 of the St. Tammany Fire Protection District No. 1 held its ground Tuesday when what started as a vehicle fire at the Canterbury Apartments in Slidell suddenly flashed into a blinding blast, triggered by a magnesium component inside the car. Video from the department shows firefighters quickly repositioning and boxing in the flames while neighbors looked on from a distance. Officials said the response kept the damage confined to the vehicle, and no injuries were reported.
A video posted by St. Tammany Fire Protection District No. 1 shows Engine 11 pulling up to the complex just as the fire erupts into a fierce white-hot flare, which the district identified as the ignition of a magnesium component inside the vehicle. In the caption, posted Tuesday, the district notes that crews "held their ground" while knocking down the blaze and that no nearby property was damaged. The raw, up-close footage makes clear why firefighters handled the scene with extra caution.
What firefighters faced
The clip captures a rapid, intense flash more typical of burning metal than of fuel, plastic or upholstery, and that can complicate suppression efforts. Research on magnesium alloys, summarized by ScienceDirect, notes that magnesium is now used in a growing number of automotive parts, from housings and subframes to wheels and steering components. That steady shift helps explain why some car fires produce sudden metal flares that look and behave very differently from a standard engine or interior fire.
Why magnesium fires are different
Combustible metal fires, including those involving magnesium, can burn at extremely high temperatures and may react dangerously with water, generating hydrogen gas and triggering fresh flare ups. That chemistry makes ordinary hose streams or CO₂ extinguishers poor choices for direct attack. Coverage of past magnesium incidents by fire service outlets notes that sand, specialized Class D dry powders or defensive tactics are often preferred to standard extinguishing agents. Property loss guidance from FM Global likewise warns that many conventional suppression systems and hybrid water or inert gas setups are not suitable for combustible metals such as magnesium.
Neighbors and next steps
According to the department’s post, crews kept the fire contained to the single vehicle, and no injuries or damage to the surrounding apartments were reported. The district did not share additional information about the vehicle’s make, model or ownership, and an official cause of ignition has not yet been released. Residents in the area were urged to give firefighters space to operate and to follow any instructions from emergency personnel on scene.
Engine 11 is based at the department’s Central Station and is one of several engine companies that serve central Slidell, according to the department’s history. For now, the department’s video remains the primary public account of the incident, and officials have not released further details.
