Fire broke out near Kearny Villa Road and Miramar Way around 2:20 p.m. and spread to about 5 acres, Fire-Rescue officials said

As of 3:23 p.m., the fire had burned at least 10 acres, according to SDFD. No structures were threatened. According to a post on X/Twitter shortly before 4 p.m. by MCAS Miramar, the brush fire had grown to about 12 acres. The fire was located on the airfield located south of the runways on base, it said.

The slow-moving blaze broke out for unknown reasons shortly before 2:30 p.m. on military property near the intersection of Kearny Villa Road and Miramar Road, according to the San Diego Fire-Rescue Department.