Media playback is unsupported on your device

Lord Howe warns of UK leaving EU

19 May 2013 Last updated at 10:13 BST

The former Conservative Cabinet minister, Lord Howe, has urged David Cameron not to let eurosceptic backbenchers determine his policy on Europe.

Lord Howe expressed concern about putting Britain's membership of the EU to a referendum, insisting that leaving would "seriously undermine" the UK's international position.