Southern California Edison is looking into whether its equipment is tied to the Eaton and Hurst Fires, its parent company said, though the cause has not been officially determined.

Southern California Edison disclosed that its equipment might have sparked the Hurst Fire, which erupted during January’s deadly LA firestorm, the Associated Press reports. The Hurst Fire burned 1.25 square miles but caused no fatalities or structural damage.

Southern California Edison, a utility powering the Los Angeles area, is under the microscope for potentially starting two of the Los Angeles County wildfires. One was small and did not damage any homes,

A California utility said Thursday that its equipment likely sparked a wildfire in Los Angeles that broke out the same day as two massive blazes in the area killed at least 29 people and destroyed thousands of homes.

Southern California Edison, a unit of utility Edison International , said on Monday preliminary analysis of data showed a "momentary and expected increase in current" on its energized lines in the Eaton Canyon corridor on Jan.

The utility company said its equipment may have caused the fire but that an investigation is continuing and that they are cooperating with authorities.