ISIL deserters and the men who helped them escape from Syria reveal testimonies of life and death under the armed group.
Probe announced after Al Jazeera revealed that at least 23 South Africans joined the armed group in Syria and Iraq.
Turkish Kurds issue call to arms after Islamic State group fighters besiege Kurdish Syrian city in major assault.
Several villages in Aleppo province bordering Turkey fall to armed group, as US accuses Syria of allowing ISIL advance.
Washington says death of ISIL's main coordinator for moving arms between Iraq and Syria is a major blow to the group.