The world's chemical weapons watchdog Wednesday voiced concern over reports of a chlorine gas attack near the battleground Syrian city of Aleppo.
Iraqi Shia paramilitary forces have launched an operation to retake a town from which the Islamic State group launched a chemical weapons attack that killed three children, commanders said Sunday.
CIA director John Brennan has said that Islamic State fighters have used chemical weapons and have the capability to make small quantities of chlorine and mustard gas, CBS News reported Thursday.
