CIA director John Brennan is warning that Islamic State (ISIS) fighters have used chemical weapons and have the capability to make small quantities of chlorine and mustard gas, AFP reports.
"We have a number of instances where ISIL has used chemical munitions on the battlefield," Brennan was quotes as having told CBS News, which released excerpts of an interview with him that will air in full on the "60 Minutes" news program this coming Sunday.
Read more