Ash rains down on Los Angeles as California declares wildfires emergency

Smoke filled the sky and ash rained down across Los Angeles from a destructive wildfire that the mayor said was the largest in city history.

Smoke filled the sky and from a destructive wildfire that the mayor said was the largest in city history.

It was one of several blazes that sent thousands fleeing homes across the US West during a blistering holiday weekend heatwave.