Firefighters battle 60-acre border fire in steep and rocky terrain

SAN DIEGO (FOX 5/KUSI) -- Firefighters were at the scene of a vegetation fire burning near the U.S.-Mexico border Saturday afternoon.

The Border 18 fire spread from 5-10 acres at around 2 p.m. Saturday to 60 acres within about an hour and was burning south of the community of Dulzura and Highway 94, Cal Fire reports.

The fire was remained at 60 acres and was 50% contained by 7 p.m. while firefighters worked to build containment lines around the perimeter, Cal Fire said.

San Diego County Fire and Cal Fire Firefighters were battling the fire in steep and rocky terrain in a remote area off Marron Valley Truck Trail and Lupe Spur Truck Trail.

Cal Fire said 10 fire engines and three helicopters were called to the area, along with dozens of other firefighting personnel, and additional ground and air resources were called in to assist.

No evacuations were in place. The fire has since been 100% contained at 61 acres.

Check back for updates on this developing story