A brush fire on Camp Pendleton has burned nearly 1,000 acres and spread into the Cleveland National Forest. The Mateo fire was 10% contained Tuesday morning.
- Fire started Monday in the Quebec training area near San Mateo Creek. - No structures are threatened; the fire is in a remote area.
- Eight hotshot crews and two helicopters are battling the blaze. - Difficult terrain is hampering control efforts.
Officials urge caution as Southern California weather heats up.