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EL DORADO COUNTY-

A wildfire burning north of Pollock Pines swelled to more than 18,000 acres overnight, and forced officials to close Highway 50. More than a thousand homes are threatened

The highway is closed between Sly Park and Fresh Pond because of the ongoing firefighting efforts.

The US Forestry Service says the King Fire has now burned 18,544 acres, or about 30 square miles, and is only 5% contained.

Fire officials say more than 1,600 homes and 800 other structures are currently threatened by the King Fire.

The King Fire started Saturday evening, and has quickly spread in steep, rugged terrain.

Mandatory evacuations are in place for the following areas:

Bullion Bend Road, Bend Court, Bramble Road, Castlewood Circle, Centerview Court, Centerview Drive, Crystal Summit Road, Darby Lane, Dirt Road Lane, Frontier Road, Hazel Valley Road, Midway Avenue, Mill Run, Old Carson Road, Park Creek Road, Pony Express Trail (east of Sly Park Road), Rampart Court, Ridgecrest Way, Ridgeway Drive, Tall Grass, Stacy Lane, Sunset Drive, Timberwood Way, Twin Mountain Road.

NEW PHOTOS: Images from the King Fire 

Mandatory Evacuation Orders have been issued for the following areas:

Crystal Basin – Hwy 50 east of Fresh Pond to Icehouse, North on Icehouse to Wentworth Springs, west to just above Quintette, to include campgrounds and businesses.

Union Valley Reservoir area, Yellow Jacket Campground, Wolf Creek Campground, Stumpy Meadows Campground, Fashoda Campground, Big Hill Lookout Road, Big Hill Road, Blodgett Forest Road, Bridle Path Way, Forest Road, Frontier Road,Helix Flat Ave, Icehouse Road (west side), Jones Fork Power House Road, Middle Loop Road, Mosquito Road, Onion Valley Road, Outer Limits Lane, Little Silver Road, Loop road, Peavine Point Road, Peavine ridge road, Plum Creek Road, Piolet Creek Road, Robbs Peak Road, Sand Mountain Road, SMUDEA, Spring Road, Sunset Drive, Tricometric Trail, Wentworth Springs (south side, east of Pilot Creek Road), 11 Pines Road.

Mandatory evacuation advisory for the entire community of Swansboro, north of the South Fork of the American River between Brushy Creek and Rock Creek.

Evacuation Orders are still in place for the following: Eastside of Forebay road from King of the Mountain Road to Pony Express Trail. All roads north of Pony Express Trail from Forebay road east through Bullion Bend. White Meadows road and Spring Valley Road are also under mandatory evacuation

Shelter Location: Seventh Day Adventist Church at 3520 Carson Road, Camino, CA 95709.

Monday afternoon, a Cal Fire captain and an inmate crew had to deploy their shelters while fighting the fire. Everyone is accounted for and no one was seriously injured.