Power lines threatened in San Diego County brush fires

Four brush fires in northeast San Diego County have burned 2,350 acres and are threatening electrical transmission lines to Borrego Springs, Warner Springs and Ranchita, Cal Fire reported Tuesday morning.

The fires were caused by lightning strikes east of Julian. Firefighters are being hampered by tough terrain and the inaccessibility of much of the area, according to Cal Fire.

Nearly 600 firefighters are battling the four separate blazes, aided by four water-dropping helicopters and four air tankers. No structures have been damaged and no evacuation orders issued.

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Four brush fires in San Diego County burn more than 1,000 acres

-- Tony Perry in San Diego

Image: Approximate location of the fires is shown in red. Credit: Google Maps