Ahrar ash-Sham
On 17 March 2016 Jund al-Aqsa members attempted to hold a mourning service at a tent for the death of an ISIL commander in Sarmin, Idlib Governorate. Ahrar ash-Sham fighters then entered the tent and forced them to end the ceremony, sparking a gunfight between the two groups. In response, Jund al-Aqsa fighters set up checkpoints in the town, intending to arrest Ahrar ash-Sham members.