Fast-spreading wildfire east of LA forces thousands to flee amid fierce heatwave

A mix of rain and smoke from the nearby Line fire creates a heavy stew of air pollution over San Bernardino, California, on Sunday. Photograph: David McNew/Getty Images

Thousands of people east of Los Angeles have been ordered to flee their homes from an out-of-control wildfire that has burned through a large area of forest.

In southern California, currently in the grip of a ferocious heatwave, the so-called Line fire has burned areas around San Bernardino national forest, about 65 miles (105km) east of Los Angeles.