US Forest Service photo of the Rim Fire near Yosemite National Park, California
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Wildfire near Yosemite park sends tourists fleeing

23 August 2013 Last updated at 05:24 BST

A huge wildfire near Yosemite National Park in California has forced scores of tourists to flee during peak season and is threatening several thousand homes.

The week-old Rim Fire tripled in size on Thursday alone and now spans 84 square miles (217 sq km).

More than 1,300 firefighters have been tackling the blaze in difficult terrain but have contained only 2% of it.

David Willis reports.