PHOENIX -- Investigators are trying to determine what sparked a fire that burned a Phoenix home nearly to the ground early Friday morning.
It happened at about 3 a.m. in the area of 19th Avenue and Thunderbird Road near Thunderbird High School.
Video from the scene showed what was left of the front of an RV near the smoldering ruins.
Neighbors say the flames lit up the night and the heat was palpable.
"When we came out the trees were on fire. You could feel the heat," next-door neighbor Caleb Jolley said. "There were red embers just raining down on our house and the houses across the street, too. There was just a shower of burning embers."
Although the fire destroyed the home and yard, firefighters kept the flames from spreading to neighboring houses.
Seven adults live in the home that caught fire. Five of them were home at the time. They all got out safely. One woman was taken to the hospital to be treated for smoke inhalation.
It's not clear if the house had working smoke detectors. The residents said they woke up to loud bangs and then saw the flames and smoke.
A crew from Southwest Gas was on the scene checking lines to the house and making sure there are no leaks.