Liam Fox
Media playback is unsupported on your device
Video

Liam Fox resigns from the government

Defence Secretary Liam Fox has resigned after a week of pressure over his working relationship with friend and self-styled adviser Adam Werritty.

Mr Fox was being investigated amid claims he broke the ministerial code.

In a letter to David Cameron, Mr Fox said he had "mistakenly allowed" personal and professional responsibilities to be "blurred".

The BBC's Nick Robinson reports.