In details, ISIS fighters took advantage of the bad weather conditions and attacked several positions of US-backed forces around the towns of al-Kashmah and al-Bahrah. After overrunning theses positions, the terrorists stormed the Hajin refugee camp and several military positions around it.

The Syrian Observatory for Human Rights (SOHR) reported that ISIS abducted over 130 families from the Hajin camp during the attack. The SDF, which is responsible for the camp, is yet to confirm or deny this.