ISTANBUL - Islamic State militants have fired a rocket in northern Syria that caused symptoms of "chemical gas" exposure in 22 Syrian rebels, state media cited Turkey's military as saying on Sunday.
The attack targeted Turkey-backed rebels who have for days been besieging the Islamic State-controlled town of al-Bab, a major goal in Ankara's "Euphrates Shield" operation to push the jihadists away from the Syrian side of the Turkish border.
According to the state-run Anadolu agency, the Islamic State rocket attack occurred in the Haliliye area. The army did not specify where the attack had taken place.
"Twenty-two rebels were observed to have symptoms of being exposed to chemical gas in their eyes and bodies as a result of the rocket fired by Daesh," media reports quoted the army statement as saying, using an Arabic acronym for Islamic State.