More than 90,000 people have fled their homes near Los Angeles as two fast-spreading and uncontained wildfires raged across more than 14,600 acres of land.

The larger Silverado Fire erupted early yesterday morning and quickly spread, while also been fueled by dry conditions and erratic winds that prevented firefighting aircraft from flying.

The inferno quadrupled in size by afternoon, jumping a highway and covering the area with a huge plume of smoke and ash.

The National Weather Service had warned that the combination of low humidity, dry vegetation, and strong winds had created “the most dangerous fire weather conditions” this year.