A rapidly moving wildfire has forced the evacuation of some 82,000 people in San Bernardino County, just east of Los Angeles, officials say.

The blaze broke out on Tuesday, August 16 in a mountain pass and has already engulfed about 15,000 acres (6,070 ha) of land.

Tens of thousands of homes are at risk from the so-called Bluecut fire. A state of emergency has been declared.

Another fire, the Clayton, which broke out on Saturday in northern California, has destroyed 175 homes.