Official Fadi al-Qassem says all residents have left al-Hol camp, which long housed relatives of alleged ISIL members.
The al-Hol camp population is reported to have dropped by thousands after SDF’s chaotic handover to Syrian government.
Pullout comes after Syrian forces take control of northeast region from Kurdish-led SDF.
At the height of its power, ISIL held around a third of Syria and 40% of Iraq. It no longer controls that kind of territory, but the threat from the group is on the rise. Soraya Lennie explains.
Iraq says more than 3,000 Syrians are among the ISIL-linked detainees transferred to one of its prisons by US military.
Group of 34 women and children with Australian passports forced to return to Roj detention camp for ISIL relatives.
Experts say ISIL and al-Qaeda-linked groups use drones to target army positions with IEDs and to gather intelligence.
The report says US officials expect troops to withdraw from remaining positions within two months.
Syria’s defence ministry says its forces have taken control of the strategic base amid coordination with the US.
Operation Hawkeye has killed and captured more than 50 ISIL fighters after hitting about 100 targets.
The move, in coordination with the US, is the latest implementation of the ceasefire agreement with Kurdish-led forces.