Authorities say they have arrested a man on suspicion of arson in a fast-growing California wildfire that has driven nearly 2,800 people from their homes.

The arrest of 37-year-old Wayne Allen Huntsman was announced Thursday.

The 111-square-mile fire 60 miles east of Sacramento is threatening about 12,000 homes around the town of Pollock Pines. It has been fueled by gusty winds, along with timber and grass that is bone dry because of the state's ongoing drought.

The fire more than doubled in size between Wednesday afternoon and Thursday morning. It is only 5 percent contained.

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