Seven firefighters were hospitalized after a house fire in Riverdale, Maryland, authorities said.
The fire broke out at a one-story, vacant house shortly after 9 p.m. Friday, the Prince George's County Fire Department said Saturday.
"Preliminary reports indicate that firefighters had initiated an interior attack on the fire when a sudden rush of air, fanned by high winds, entered from the rear of the house either from a door or window being opened or broken out," the fire department said in a statement. "The sudden addition of a large amount of fresh air into the fire environment created a 'fire ball' inside, engulfing the firefighters."FULL STORY