 On 1 September, the FSA captured an air defense facility in Abu Kamal.Three days later, the FSA took control of the head security compound in Deir ez-Zor city, driving loyalist forces out of one of their three remaining bases on the outskirts of the city.On 5 September, Hamdan military airport near Abu Kamal was captured by the rebels, after a three-day siege and an internal defection.