Media playback is unsupported on your device

Wildfires are the real danger in US heat wave

29 June 2013 Last updated at 00:22 BST

The western US states are baking under an extended heat wave, with temperatures threatening to break the all-time high recorded on Earth.

Phoenix, Arizona, could see the mercury hit 48C (118F) on Friday, officials said. Temperatures higher than 37C were expected as far north as Utah.

The heat wave is expected to last through the weekend.

Regan Morris reports.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.