The latest on wildfires barreling through drought-wracked California (All times local):

7 a.m.

The destructive wildfire roaring through Northern California's parched Lake County has surged ahead, churning through an extra 23 square miles overnight.

California Department of Forestry and Fire Protection spokesman Daniel Berlant tweeted Sunday morning that the fire has burned up 62 1/2 square miles.

Authorities say the fire erupted in Lake County, about 100 miles north of San Francisco, Saturday afternoon and rapidly chewed through brush and trees parched from several years of drought.

An unconfirmed number of structures were destroyed. Entire towns as well as residents along a 35-mile stretch of highway were evacuated.

Four firefighters suffered second-degree burns in fighting the blaze and are hospitalized in stable condition.