On October 22, ISIS fighters captured the UNRWA medical center in the Yarmouk refugee camp south of the Syrian capital, Damascusб from the pro-Syrian opposition Palestinian armed group Aknaf Bait al-Maqdis, according the ISIS-linked news agency Amaq.
Amaq also reported that ISIS fighters attacked the positions of Aknaf Bait al-Maqdis around the Palestine roundabout in Yarmouk. 2 fighters of Aknaf Bait al-Maqdis were killed, and 11 others were injured during the attack, according to Amaq.
Meanwhile, Jaysh al-Ababe claimed that ISIS fighters used unspecified chemical weapon during its attack on the UNRWA medical center. However, Jaysh al-Ababe didn’t provide further details about the supposed chemical attack.
Syrian opposition sources reported that Jaysh al-Ababe and Jaysh al-Islam groups are now supporting the Aknaf Bait al-Maqdis group to repel the ISIS attack. Back on August 13, the three groups approved a de-escalation agreement that includes several areas south of Damascus city, one of them is the Yarmouk camp.
The ISIS attack in Yarmouk camp will likely escalate as it appears that ISIS has got an upper hand in the camp. Back on 12 April 2015, Aknaf Bait al-Maqdis launched a military operation to eliminate ISIS inside the camp, however the operation failed within hours of its beginning.