(NewsNation) — Several wildfires sparked by lightning in California's Central Valley have prompted evacuation orders across two counties as of Wednesday.

The blaze has spread nearly 12,000 acres across Calaveras and Tuolumne counties, according to the California Department of Forestry and Fire Protection.

The individual blazes — referred to as the 6-5, 2-7 and 2-2 fires — have been designated the "TCU September Lightning Complex."

Fire conditions were expected to persist through at least Thursday, per the National Weather Service. No injuries or deaths have been reported.

Photos: California wildfires sparked by lightning hit Chinese Camp • A fire blazes behind a sign reading "Chinese Camp." (Credit: CALFIRE Calaveras Unit) • The 6-5 Fire, part of TCU September Lightning Complex, bu

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