A member of the SDF holds their flag at the iconic Al-Naim square in Raqa on Oct. 17, 2017. (Photo: Bulent Kilic/AFP/Getty Images)

Among the 280 were 14 French citizens and six Arabs of unspecified nationality. It’s unclear if the non-Iraqi detainees will remain in Iraqi custody.

Iraq declared victory over IS in 2017, after its forces drove them out of several areas they had controlled since 2014.