California's fast-moving Oak Fire burns nearly 12,000 acres

The fire, which had 0% containment as of Saturday evening, began Friday in the foothills of the Sierra Nevada near the small community of Midpines, roughly a 9-mile drive northeast of the county seat, the town of Mariposa, state fire officials said, according to CNN. 

Flames tore through trees and sent thick smoke into the sky Friday, and in at least one rural area burned close to homes and parked vehicles, video from CNN affiliates KFSN and KGO showed.

"(Authorities) came by ... and told us everybody's got to go," Wes Detamore, a resident of the Mariposa Pines area, told KFSN Friday.

Electricity service in the area stopped at about 4 p.m. Friday, "and the fire has been coming towards us faster and faster," Detamore said.