A small brush fire started Wednesday near a La Mesa grocery store close to northbound State Route 125.
The fire broke out around 3 a.m. behind an Albertsons grocery story along Fletcher Drive.
With a lot of dry brush in the area, Heartland firefighters saturated the area with extra water to prevent any other fires.
After the fire was extinguished, crews noticed that a sprinkler system was leaking. That's when they learned that the fire burned a sprinkler box.
Albertsons management and Cal Trans were called out to turn off that water.
No buildings were damaged. No one was injured.
