The former head of the MI6 has described the Muslim Brotherhood as being "at heart, a terrorist organisation".

Speaking at a conference on British-Israeli diplomatic relations at Chatham House, Sir Richard Dearlove also said that Hamas and Hizbollah were "Iranian surrogates".

He warned that it was necessary to "do everything you can to prevent Iran from becoming nuclear".

Sir Richard was in charge of the British intelligence services for five years until 2004.