ISIS has killed 15 of its members in a mass execution for allegedly “spying,” the Syrian Observatory for Human Rights (SOHR) reported on April 3.
The killings came after 35 members were arrested on April 2 in Raqqa, Syria, according to Britain-based SOHR, which claims it monitors the five-year-old Syrian conflict through a network of sources on the ground.
The massacre is the largest that a terror group has carried out on its own members.
