SAN DIEGO – Crews with the California Department of Forestry and Fire Protection stopped a brush fire Friday afternoon near the U.S.-Mexico border, authorities say.

The fire, located near the Otay Mountain Truck Trail and Doghouse Junction on Otay Mountain, was halted at 40 acres and is 5% contained, CalFire officials stated on Twitter.

SkyFOX was over the area around 1:30 p.m. showing heavy smoke among trees and brush on the mountain.

Firefighters were being flown in by helicopter due to limited ground access, and will remain on scene overnight and through Saturday, officials said.

Check back for updates on this developing story.