Firefighters battling brush fire in San Bernardino Mountains above Big Bear Lake

SAN BERNARDINO COUNTY, Calif. (KABC) -- Firefighters are battling a brush fire in the mountains above Big Bear Lake, which has burned at least 348 acres with 0% containment so far.

The so-called Gold Fire erupted Monday morning in the Holcomb Valley area on Forest Service Road.

According to San Bernardino National Forest officials, no structures are being threatened so far. There is a moderated rate of spread, officials said.

The Holcomb Campground is under an evacuation order, according to CalFire.

The cause of the fire remains under investigation.