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The Holy fire in Southern California is moving at a rapid rate of speed, the Orange County Fire Authority said Monday afternoon, and has already burned more than 1,000 acres in just a few hours.

The fire broke out at around 1:30 p.m. PT in the Cleveland National Forest, across the main divide between Orange and Riverside counties, the OCFA said. Evacuations are underway in two canyons, Trabuco and Holy Jim, and two hikers who were stranded near the fire have been rescued.

There are both ground and air units fighting the blaze, and a huge, dark plume of smoke is visible for miles.