Liam Fox quits as defence secretary
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".
In response, the prime minister said he was very sorry for Mr Fox's departure but "understood his reasons".
Labour said Mr Fox had not upheld the standards expected of ministers and his departure was "inevitable".