SAN DIEGO (KGTV) -- A fire that erupted on Camp Pendleton Tuesday afternoon grew in size overnight.
Base officials said the so-called Oak Fire has burned 140 acres and was 35% contained as of 6 a.m. Wednesday.
The brush fire started in the vicinity of the base’s Range 409 at an unspecified time, according to base officials.
The fire was expected to burn throughout the rest of the day, which prompted Cal Fire to send resources to help.
RELATED: Check today's San Diego County forecast
Cal Fire send fire engines, bulldozers, hand crews and a helicopter to assist in the firefighting effort.
Video from San Diego Gas and Electric cameras show the fire exploding in size throughout Tuesday afternoon, sending thick, black smoke into the air.
Cal Fire told 10News on Tuesday that the fire had the potential to scorch 200 acres.
Watch video of the fire in the player below:
Currently at 60 acres. Mutual aid still assisting CPFD. https://t.co/2tu93HEg4e pic.twitter.com/sfSKCB5xtN
— Camp Pendleton (@MCIWPendletonCA) October 23, 2019
The fire sparked amid mild Santa Ana wind conditions and hot, dry weather.
RELATED: Red Flag Warning set to take effect amid dry conditions in San Diego
According to the National Weather Service, San Diego County will see a brief break from Santa Ana winds Wednesday before a Red Flag Warning goes into effect early Thursday morning through Friday.
