A fast-moving brush fire northeast of Los Angeles expanded to about 2,700 acres by Friday evening, triggering evacuation orders in a sparsely populated high desert area.
The blaze erupted around 1 p.m. in dry, scorching conditions about 45 miles from LA, where temperatures climbed to nearly 100°F and helped drive rapid spread.
Piñon Hills, a community of about 7,200 people in neighboring San Bernardino County, was under partial evacuation warning, while the Red Cross opened a shelter at a county YMCA.
The fire entered Angeles National Forest, and officials had not yet said how many structures were threatened as a broader weekend heat dome raises wildfire risk across drought-hit regions.