UK says not ruling out airstrikes against Islamic State

Islamic State issues video of beheading of US hostage

District in Bali anticipates ISIS infiltartion

UN to send team to investigate Islamic State crimes in Iraq

Britain to pass new laws to counter homegrown Islamist fighters

Saudi king warns of terrorism threat to US, Europe

Video shows Islamic State executes scores of Syrian soldiers

US mother pleads to Islamic State leader for her son's release

UN accuses Islamic State of mass killings

Britain plans tougher laws to tackle UK jihadists

Ex CIA boss: Journalist's killing first IS attack on US

Syrian airstrikes target Islamic State group

Extremists closing in on Syrian rebel stronghold

Iraq's PM-designate calls for unity

Iraq's Maliki finally steps aside, paving way for new government