According to Captain Paul Long, spokesman for the York fire department, units responded to the KOA Campground on Newman Rd in Williamsburg shortly after 9:00pm Friday to reports of an RV on fire.
Two adults and two children suffered various degrees of burns, and were all transported to the hospital with life-threatening injuries.
One of the children was transported by Nightingale.
The fire was quickly extinguished, and the preliminary investigation indicates a propane leak as the cause of the fire.
