10/23/2014 06:03 pm ET Updated Oct 23, 2014

Islamic State Militants Allegedly Used Chlorine Gas Against Iraqi Security Forces

AHMAD AL-RUBAYE via Getty Images

BALAD, Iraq — Dizzy, vomiting and struggling to breathe, 11 Iraqi police officers were rushed to a government hospital 50 miles north of the capital last month. The diagnosis: poisoning by chlorine gas. The perpetrators, according to the officers: Islamic State extremists.

The chlorine attack appears to be the first confirmed use of chemical weapons by the Islamic State on the battlefield. An Iraqi Defense Ministry official corroborated it, and doctors said survivors’ symptoms were consistent with chlorine poisoning.

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