Media playback is unsupported on your device

Fukushima leak: 'Wrong equipment' used to measure radiation

1 September 2013 Last updated at 12:30 BST

Radiation levels around a leaking tank at the Fukushima nuclear plant in Japan are 18 times higher than originally thought, according to officials.

New readings showed radiation levels high enough to give a lethal dose in as little as four hours.

The BBC's Rupert Wingfield-Hayes said new radiation monitoring equipment has revealed the true extent of the problem.

Copyright © 2015 BBC. 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.