Australias utenriksminister Julie Bishop advarer verden: IS har eksperter på kjemi som kan lage klorgass, og de vil ikke nøle med å bruke den.
‘The use of chlorine by Daish, and its recruitment of highly technically trained professionals, including from the West, have revealed far more serious efforts in chemical weapons development,’ she said.
‘Daish is likely to have amongst its tens of thousands of recruits the technical expertise necessary to further refine precursor materials and build chemical weapons.’
The Iraqi Kurdish authorities have already made allegations that they have evidence that ISIS used chlorine gas against their peshmerga fighters in northern Iraq in January.
Chlorine is a choking agent whose use as a chemical weapon dates back to World War One. It is banned under the 1997 Chemical Weapons Convention, which prohibits all use of toxic agents on the battlefield.