Media playback is unsupported on your device

New clues in search for Malaysia Airlines MH370

19 March 2014 Last updated at 23:20 GMT

Transmissions detected at hourly intervals suggest Malaysia Airlines flight MH370 was moving for several hours after communications with the craft were lost, the BBC has learned.

But could the data reveal the location of the plane which went missing on 8 March with 239 people on board?

The BBC's Andy Moore reports.

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.