A fire safety lesson gone wrong threatened the lives of a mother and her two young children while they slept in the early hours of yesterday.
Featherston Fire Brigade chief Colin McKenna said the fire at the South Wairarapa cottage was caused by fire ash left on the back porch, which ignited and caught the back wall and roof of the home, including a gas bottle.
An explosion heard by neighbours is thought to have been the hose of the gas bottle exploding.
Joy Mebus owns the cottage in Western Lake, South Wairarapa, and rents it to a mother and her two children, aged 9 and 10.
She understood the mum had been teaching her children about fire safety the night before.