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Drones hampered firefighters battling blaze on California freeway

Five drones were flying over the wildfire dubbed the North Fire Friday, and their presence caused firefighting aircraft to leave the area for about 20 minutes.

Cars are shown burning on the Interstate 15 freeway in the Cajon Pass, Calif. in the frame grab from KNBC video on July 17, 2015. (Photo by NBCLA.com/Reuters)
Cars are shown burning on the Interstate 15 freeway in the Cajon Pass, Calif. in the frame grab from KNBC video on July 17, 2015.Reuters

Phil Helsel