REPUBLIKA.CO.ID, LONDON - Britain said on Saturday it planned tougher laws to deal with British Islamist militants after Islamic State (IS) fighters in the Middle East released a video showing a suspected Briton beheading US journalist James Foley.

British Muslims and politicians have expressed horror at the apparent involvement of a Briton in the murder, which has fed concerns about the number of Islamist militants from Britain joining conflicts overseas and then returning home radicalized.

Authorities are trying to identify the man with a London accent who has been dubbed "Jihadi John" by media after sources said he was one of three Britons nicknamed the 'Beatles' who guarded hostages in Raqqa, the IS stronghold in eastern Syria.

Home Secretary (interior minister) Theresa May said she was preparing new laws to tackle Islamist militants at home and to stop them going abroad to fight, adding that Britain faced a long struggle against a "deadly extremist ideology".

"We will be engaged in this struggle for many years, probably decades. We must give ourselves all the legal powers we need to prevail," May wrote in the Daily Telegraph newspaper.

While details are yet to be confirmed, May said the new powers would be designed to restrict the militants' behavior, ban involvement in groups preaching violence and require prisons, broadcasters, schools and universities to take a greater role in combating the radicalization of Muslims.

May said at least 500 British citizens have traveled to fight in Syria and Iraq, where IS has seized large swathes of territory. Some of the fighters are aged as young as 16.

Britain has about 2.7 million Muslims in a total population of 63 million. The rise of Islamist militants in Britain has been a growing concern since four Britons -- two of whom had been to al Qaeda training camps in Pakistan -- killed 52 people in suicide bomb attacks in London in July 2005.

Ikuti Whatsapp Channel Republika