At least 1,500 structures have been destroyed, and at least 11 people have been killed by wildfires raging in Northern California this week.

Three counties are under a state of emergency declaration as first responders continue battling the spreading blazes.

Photo gallery: Wildfires rip through California wine country

By Monday, 68 miles had burned, but there were no reports of injuries. The area is dealing with a lack of humidity and low resources, Napa County Fire Chief Barry Biermann said. Governor Jerry Brown said winds are high as well, making it hard to extinguish.

At least six fires in the region are being tracked by the National Weather Service, according to KTVU in California.