When they arrived, the house was completely ablaze and, you might as well write it right away, nothing remains of it.
According to initial information, the explosion took place in the kitchen following a bad connection of a gas cylinder. Indeed, it seems that the occupant of the premises, for the sake of economy, would have decided to connect a bottle instead of town gas.
Everything exploded a few minutes later. The occupant was severely burned in the back, but managed to evacuate wife and children.
Firefighters took several hours to put out the blaze, but virtually nothing might be saved.