A brush fire sparked by a burning vehicle scorched about 50 acres in the Angeles National Forest Tuesday.
The Antonio Fire was reported to be burning in about a half-acre of medium brush just before 2:30 p.m. in the area of Glendora Ridge Road and Mount Baldy Road, according to the Los Angeles County Fire Department.
The fire quickly traveled uphill and grew to about 10 acres by 2:40 p.m., causing the closure of Mount Baldy Road and the Claremont Wilderness Park.
Firefighting helicopters were deployed to aid fire crews in dousing the blaze, which was reported to have grown to 50 acres at about 4:40 p.m.
No structures were threatened by the fire.
