A wildfire raging in Yosemite National Park in the US has now burned 184,481 acres, making it making it one of the largest on record in California.
A total of 4,081 fire personnel have been sent to tackle the Rim Fire, which is still just 20 percent contained.
The US Forest Service said the blaze's growth potential was "extreme" and its cause is currently under investigation.
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The PM promises to double to 200,000 the number of homes built under an existing scheme aimed at easing Britain's housing shortage.
The Met Office has weather warnings in place for snow and ice until 10am in the north and west.
The plan, which would effectively strip banks of the benefit of recent corporation tax cuts, forms part of the party's election manifesto.