When we were at the Cherry Hill Campground in Maryland, we woke up one morning to smoke and firetrucks. One of the RV's in the campground caught on fire. It wasn't near us but it was still very scary. The fire department responded instantly with six fire trucks mostly trying to protect the RV's near this one. You could really hear the propane and gas tanks exploding.
No one was in the RV and no one got hurt. But there sure isn't much for these people salvage.