Members of Al-Nusra Front were killed by rival members of Islamic state.
The captives appear to be tied together with explosives and are subsequently doused in gasoline. A loud bang can then be heard, creating a large explosion, tweets from the Terror Monitor organization show.
The brutal killing was allegedly carried out by Shuhada al-Yarmouk, who operate in the south of Syria and are affiliated with Islamic State.
Despite both IS and Al-Nusra opposing Western ideals, the two terrorist groups are at war with each other. The head of Al-Qaeda, Ayman al-Zawahiri, has called IS and its leader “illegitimate.” Some members of Al-Qaeda have described methods used by IS as barbaric.
Reports on the latest IS-Al-Nusra standoff appeared days before the UN Security Council unanimously adopted a roadmap resolution calling for an immediate ceasefire in Syria. Notably, the only two groups excluded from the ceasefire plan and defined as terrorist were IS and Al-Nusra Front.