World Bulletin/News Desk
British Muslim leaders urged people to contact police if they knew the identity of the man with an English accent who appeared in a video showing the beheading of an American journalist.
The Muslim Council of Britain, the largest Muslim umbrella group in the country, condemned the "abhorrent murder" of James Foley and called for united action by Muslims to stop the "poison of extremism" infiltrating their communities.
Prime Minister David Cameron said on Wednesday it looked increasingly likely that the man in the ISIL video was British, one of hundreds who have travelled to Syria to fight.
"We condemn unreservedly (the ISIL's) psychopathic violence, whether it is on minorities, on civilians, or on fellow Muslims," the council said in a statement.
"We are horrified at the abhorrent murder of James Foley, a reporter who initially went to the region to expose the human rights abuses of the Syrian regime."
Iqbal Sacranie, an adviser to the council, told London's Evening Standard newspaper that anyone who recognised the man had a duty to contact police.
A European security official said that judging from his accent - which sounded like it came from London or near London - the man had obviously lived in Britain for a long time. Authorities were comparing his voice to those on record to try to establish his identity, the official said.
The Guardian newspaper said a former hostage had identified the man in the video as the leader of three Britons who had guarded foreign nationals in the city of Raqqa - its stronghold in eastern Syria.
The BBC also reported the presence of three British fighters who were tasked by the ISIL to guard foreign prisoners.
"It seems that these three have apparently got nicknames named after the Beatles: John, Paul and Ringo and there are reports that they have been pretty brutal towards their hostages," the BBC said.
Britain, which has about 2.7 million Muslims in its 63 million population, had previously warned about the increasing numbers of its nationals who had travelled to Syria and Iraq to fight.
British police have urged Muslim women to dissuade young people in their communities from turning towards the ISIL, in one of many tactics used by European governments worried about the future security risk posed by youths radicalised by war.
Güncelleme Tarihi: 21 Ağustos 2014, 21:44