A fast-growing California wildfire near South Yuba River State Park has grown to more than 900 acres in four days, prompting evacuation orders for hundreds of residents of nearby communities, fire officials said.

The blaze, named the Rices fire, is in Nevada County about 70 miles northeast of Sacramento, according to information from the National Interagency Fire Center. 

The fire began about 2 p.m. Tuesday near the Yuba River, and as of late Thursday firefighters had about 20% of the blaze contained, the California Department of Forestry and Fire Protection reported.

So far, 13 firefighters and one civilian have been injured battling the blaze, CalFire reported. The injured suffered heat-related problems, such as dehydration.

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Although some evacuation orders were lifted Thursday, Cal Fire says about 250 homes and other buildings remain under threat.