Firefighters extinguished several small blazes in brushy areas alongside traffic lanes on Interstate 805, near Plaza Boulevard in National City, according to the California Highway Patrol.
There are no reports of structural threats.
San Diego Fire-Rescue officials report that one acre burned at 45th Street at the freeway and that lanes have been shut down at Palm Avenue. The fire was put out shortly before 6 p.m.
NBC San Diego reports indicate a car is involved.
The CHP reports that the southbound onramp at 47th and Palm is shut down too.
– City News Service contributed to this report.