Amy Wood, the wife of Idaho State Representative Fred Wood, was injured when a room in their house that was converted to a gun safe exploded! Magicvalley.com reports …

Amy Wood, wife of Rep. Fred Wood, R-Burley, was taken by air ambulance to an unspecified Utah hospital suffering from second-degree burns to her face and hands.

…

Martin said an explosion from a room that was converted to a gun safe lifted up the patio slab at the back of the home and collapsed the patio roof. Martin said the patio slab appeared to be the roof of the gun safe room. Amy Wood was on the patio when the explosion occurred. The cause of the explosion is unknown at this time.

The damage looks extensive (click through for a higher resolution photo). I hope Mrs Wood recovers without any permanent damage …

I can only surmise that black powder was involved. How much blackpowder is needed and in what circumstances I am not sure since I do not use blackpowder. Share you theories in the comments.

[ Many thanks to Sven (Defence and Freedom) for the tip. ]