Latest: 18 structures burned in Southern California fire

A plot of farm land burned by the Sand Fire wildfire is seen in Santa Clarita, Calif., on Sunday, July 24, 2016. Two massive wildfires raged in tinder-dry California hills and canyons Sunday, leaving thousands of homes evacuated and authorities to investigate a burned body found in a neighborhood swept by flames. Firefighters have been trying to beat back a fire since Friday that has blackened more than 34 square miles of brush on ridgelines near the city of Santa Clarita and the Angeles National Forest. (AP Photo/Matt Hartman) (The Associated Press)

prev next

The remains of a burned home smoulder in Iron Canyon Road area near Santa Clarita, Calif., on Sunday, July 24, 2016. Two massive wildfires raged in tinder-dry California hills and canyons Sunday, leaving thousands of homes evacuated and authorities to investigate a burned body found in a neighborhood swept by flames. Firefighters have been trying to beat back a fire since Friday that has blackened more than 34 square miles of brush on ridgelines near the city of Santa Clarita and the Angeles National Forest. (AP Photo/Matt Hartman) (The Associated Press)

Firefighters hose down the remains of a burned home in Sand Canyon area near Santa Clarita, Calif., on Sunday, July 24, 2016. Two massive wildfires raged in tinder-dry California hills and canyons Sunday, leaving thousands of homes evacuated and authorities to investigate a burned body found in a neighborhood swept by flames. Firefighters have been trying to beat back a fire since Friday that has blackened more than 34 square miles of brush on ridgelines near the city of Santa Clarita and the Angeles National Forest. (AP Photo/Matt Hartman) (The Associated Press)

LOS ANGELES – The Latest on California wildfires (all times local):

10:15 a.m.

Authorities say 18 structures have burned in a massive wildfire that is threatening more than 1,500 homes in canyons north of Los Angeles.

Water-dropping aircraft resumed runs Sunday over the blaze that has blackened more than 34 square miles of dry brush on the edge of the Angeles National Forest. It's just 10 percent contained.

The Los Angeles County Fire Department didn't say whether the buildings that burned were homes.

Authorities said Saturday that the body of a man was discovered in a burned car outside a home in Santa Clarita. The death is under investigation, but sheriff's officials say there's no evidence it was a crime.

Shifting winds are sending smoke from the fire away from greater Los Angeles and into desert communities, where residents are being warned about poor air quality.