CalFire South County
Resources took to the air in the fight against the Otay Mesa blaze. Photo credit: OnScene.TV

Firefighters made progress Sunday in containing a large vegetation fire that broke out in Otay Mesa Saturday afternoon.

Units were dispatched in response to reports of smoke in a rural area of San Diego County near the Otay Truck Trail and not far from the Mexico border at around 3 p.m. Saturday, said Cal Fire officials.

“The fire is now at 35% contained and remains 137 acres. Crews will remain engaged today to strengthen control lines and extinguish hot spots,” said officials Sunday.

“The night resources have made good progress on the containment of the fire.”

Air tankers from all over the state were flying fire suppression missions as conditions allowed. A total of 150 personnel were assigned to the fire, including 13 engines, six helicopters, six crews and 10 other unnamed resources, officials said.

The San Diego Fire-Rescue, Corona Fire Department, and Bureau of Land Management were also assisting in the effort.

No evacuations or injuries were reported.

The cause of the fire was not immediately known.

City News Service contributed to this report.