More than 800 firefighters were battling the blaze.
Another rapidly-spreading fire near San Diego, Valley Fire, has so far spread to 10,000 acres and destroyed 11 structures, Cal Fire said.
California Governor Gavin Newsom on Sunday declared a state of emergency for five counties affected by the Creek, El Dorado and Valley fires.
"The fires have burned tens of thousands of acres, destroyed homes and caused the evacuation of thousands of residents," the governor's office said.
Record temperatures over the three-day Labor Day weekend have aggravated already dangerous fire conditions and further stressed exhausted California firefighters.
(Writer & Editor: BUR-MTP/FOX, Agence France-Presse)
Source: http://u.afp.com/3baH
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