A blast in the northern Syrian town of al-Rai, on 27 November, injured 12 people, mostly children. According to security and hospital sources, the blast is reportedly an ISIS suicide bombing.
The injured have been taken to a nearby hospital in Turkey.
According to a report in an international news agency, Turkey's army previously said that ISIS militants had fired a rocket into the Haliliye area of the same region that caused symptoms of "chemical gas" exposure in 22 Syrian rebels.
Town of al-Rai, is under the control of Turkey-backed rebels. The town was seized from ISIS militants in Ankara's "Euphrates Shield" operation launched in August.
According to media reports, 22 rebels were transferred to a Turkish hospital on suspicion of chemical poisoning after complaining of constant sickness and severe headaches following the attack in Haliliye.
"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," an international news agency quoted an army statement as saying.