Original sentence: A day after the attack, the following organizations claimed responsibility for the operation - the Izz ad-Din al-Qassam Brigades (the armed wing of Hamas), the Popular Resistance Committees (which includes members of Fatah, Islamic Jihad, and Hamas), and a previously unknown group calling itself the Army of Islam.In addition, two of the militants whom were killed during the incident were later on identified as Palestinian militants:
Edited sentence: Palestinian militants