According to The Guardian, British Muslims urged not to travel to Syria and Iraq as fears grow over homegrown involvement in terrorism
A militant waves a black Isis flag in Iraq. Abu Osama said: 'If and when I come back to Britain it will be when this … Islamic state comes to conquer Britain and I come to raise the black flag of Islam over Downing Street, over Buckingham Palace, over Tower Bridge and over Big Ben.' Photograph: Stringer/Reuters
A Briton who claims he has been fighting alongside jihadist militants in Syria has told the BBC he would not return to the UK until he could raise "the black flag of Islam" over Downing Street and Buckingham Palace.