UPDATE - May 19, 7:55 a.m.
The fire on Camp Pendleton has burned 150 acres but is at 80 percent containment, base officials said. Fire crews are on "patrol status."
UPDATE - May 19, 6:05 a.m.
Camp Pendleton officials said the fire is 65 percent contained and has burned 150 acres. The forward rate of spread was stopped just before 1 a.m.
UPDATE - 10:28 p.m.
Base officials said the blaze has grown to 50 acres and is now 20 percent contained.
SAN DIEGO (KGTV) -- Firefighters are working a 35-acre brush fire Monday night that started in a training area on Camp Pendleton, base officials said.
Camp Pendleton Fire Department crews responded to an 8-acre fire just before 8 p.m., according to Marine Corps Installations West. Officials said the smoke was visible off base.
The fire spread to about 35-acres at around 9:30 p.m., according to officials.
"Update: 35 acres still in training area slow rate of spread," MCIW said in a tweet.
Photos posted on Twitter from a resident about five miles east from the scene show thick plumes of smoke and tall flames glowing along the Camp Pendleton ridgeline.
The area was expected to see a light chance of rain Monday night which may aid the firefighting effort.
"A little precipitation is starting to move in so there is a noticeable decrease in fire activity at this time," tweeted Kevin McClain.
A fire strike team comprised of crews from Vista and Carlsbad fire departments are on scene to help battle the blaze.
No other information is available at this time.
Stay with 10News for updates on this developing story.