Flames tore through a home in the Pomona Valley Monday evening before firefighters managed to put out the blaze.
The fire, located in the 4500 block of Live Oak Canyon, was reported to authorities just after 6:30 p.m. and burned through about a quarter of an acre within 20 minutes, officials said. The area is located near the border of Claremont and La Verne.
Sky5 footage showed large portions of the home's roof completely burned off as flames continued rising through the skeletal remains.
At 9:20 p.m., police said Los Angeles County firefighters had finished putting out the house fire and were cleaning up. It burned through half an acre by that time.
No other structures were believed to be in danger, police said, and no evacuation orders were issued.
Although fire officials initially said it was unclear if the blaze was a brush fire, authorities later clarified it was a single fire at the home.
KTLA's Matt Phillips contributed to this report.
Correction: A previous version of this story misstated the acreage the fire burned through. The post has been updated.