Hard-line Iranian students stormed the British Embassy in Tehran on Tuesday, the New York Times reports. The protesters brought down the Union Jack and threw documents out of the windows, chanting “death to England.” An initial report by semiofficial newsagency Mehr that six embassy workers had been taken hostage was later withdrawn with no explanation. The attack comes after Iran downgraded diplomatic relations with the U.K. after Western countries, including Canada, imposed stepped-up sanctions to punish the regime after a recent UN report found evidence that Tehran is pursuing nuclear weapons capability.