The Carr Fire near Redding, California, has claimed six lives and destroyed 536 structures, Cal Fire announced Sunday.
Two of the victims are firefighters. The blaze grew to more than 89,000 acres overnight, and it's only 5 percent contained. More than 37,000 people have had to evacuate.
The Ferguson Fire near Yosemite has burned more than 53,000 acres, and is at 30 percent containment. A firefighter was killed battling the blaze Sunday morning, the second firefighter to die while trying to combat the Ferguson Fire. The fire, which has shut down Yosemite National Park, is moving quickly, tearing through a dry hillside filled with trees that died due to drought and bark beetle infestation.