(Reuters) - The United Nations agreed on Monday to send investigators to Iraq to examine crimes being committed by Islamic State militants on "an unimaginable scale", with a view to holding perpetrators to account. "We are facing a terrorist monster," Iraq's human rights...

(Reuters) - Iraqi army and Kurdish forces closed in on Islamic State fighters on Saturday in a push to break the Sunni militants' siege of the Shi'ite town of Amerli, army sources said. Two officers said Iraqi troops, militia and Kurdish peshmerga were advancing from four...

(Reuters) - U.S. military operations against Islamic State in Iraq have cost an average of $7.5 million per day since they began in mid-June, the Pentagon said on Friday, a figure that means the department has spent more than $500 million on the conflict. Rear Admiral John...

The number of refugees from the conflict in Syria now tops three million, the United Nations said on Friday, as US President Barack Obama admitted he still has no strategy to tackle advancing jihadists. UN refugee agency chief Antonio Guterres said that Syria now constituted the...