The Islamic State has begun to target local media in Iraq. ISIS militants executed Muhannad Akidi Monday.
Last week, the police had conducted a raid in central and west London, and detained five people for plotting a terrorist act.
The meeting comes just a day after Turkey denied that it had reached an agreement with the U.S. over the use of its air force bases.
The base in Hit gives ISIS strategic control of the area's roads.
Turkey says it never had a firm deal with the U.S. to allow its bases to be used in the fight against ISIS.
An article, written under John Cantlie’s name, which appeared in an ISIS propaganda magazine named Dabiq, accompanied a new video.
Turkey will allow the U.S.-led coalition's military forces to use its bases.
Syrian activists said Sunday ISIS fighters in Raqqa attempted to shoot down coalition airplanes.
Islamic State group fighters, who took control of large sections of Iraq this year, regularly target Shi'ite districts in Baghdad.
The U.K. previously raised its threat level to "severe" as authorities believe more than 500 Britons have joined ISIS or al Qaeda.
Among the hostages were 10 Chinese workers and the wife of Cameroon's vice prime minister, kidnapped in May and July.
The attack, wearing a police uniform struck a provincial police headquarters in southern Afghanistan Saturday, killing one and wounding four.
Family members of an Iraqi cameraman in Samra said he was executed by the Islamic State.
“If we don’t put boots on the ground, we can’t form the coalition, we can’t retake ground that needs to be taken and held."
Clashes between pro-Kurdish demonstrators and police across major cities in Turkey have so far killed over 30 people.
The U.S. drone campaign in Yemen is helping beat the Islamic State group in Syria and Iraq.
The four men, who had been under surveillance by MI5 for quite some time, were arrested from west and central London on Tuesday.
Ammunition used by ISIS in Iraq and Syria was manufactured in over 20 countries, including the U.S. and China, a report finds.
The public plea for help is part of an ongoing international campaign to stop so-called foreign terrorist fighters.
Between July 2013 and June 2014, at least 7,000 people are estimated to have died because of the insurgency led by the group in the region.
Hundreds of thousands of civilians, mostly Kurds, have fled Kobane, which has endured a three-week long siege.
Airstrikes from the U.S. and allies haven't stopped ISIS in Kobane. What happens now?