The websites reported that Al-Nusra stormed the command centers and positions of Jund al-Malahem that has recently defected the Al-Nusra and joined Ahrar al-Sham in the small towns of Eblin, Beiloun and Mashoun in Idlib province.

The sources also said that heavy infighting erupted between the two terrorist groups in Sahl al-Rouj regin and in Eblin in Jabal al-Zawiyeh in Southern Idlib.

The infighting inflicted heavy casualties on both warring sides, killing senior Commander of al-Malahem Abu Hossein.

The websites reported on Saturday that the terrorist groups in the Northwestern province of Idlib were planning to set up a Joint Operations Room to slow down the rapid advances of the Syrian Army troops in Southern Aleppo and Northeastern Hama towards Idlib.

The websites reported that Abdullah Muhammad al-Muhaysini, the commander and Mufti (religious leader) of Tahrir al-Sham Hay'at (the Levant Liberation Board) mentioned that the terrorist groups were about to set up a Joint Operations Room similar to Jeish al-Fatah's one.

Al-Muhaysini said that one of the paragraphs of the agreement between Tahrir al-Sham Hay'at and Nouralddeen al-Zinki Movement would work on ending clashes between the two rival groups in Eastern Aleppo that was home to Ahrar al-Sham too.

The Islamic al-Turkistani Movement and Jeish al-Fatah formed a joint operations room in 2015, covering large regions from Idlib to Western Hama, but to no avail.