The news websites reported that Abu Asyad al-Babi was killed in a remote-controlled blast in his vehicle by a group of unknown assailants.
The websites further said that al-Babi was a commander of the Al-Nusra air defense battalion deployed in Northern Badiyeh (desert) that shot down a Russian fighter jet in Saraqib in Idlib province a couple of days ago.
Field sources confirmed on Saturday that Abu Yamin, a notorious security commander of Al-Nusra Front, was assassinated by unknown attackers in Southwestern Idlib.
The sources said that Abu Yamin, one of the security commanders of Al-Nusra, together with five of his forces were killed by unknown raiders in the village f al-Qaniyah near the town of Jisr al-Shughour.
The sources confirmed that Abu Yamin and his forces were killed by the assailants' gun fire.