Syrian Democratic Force soldiers patroled in Tabqa dam, Ehphrates river on March 27, 2017 (Photo: AFP/VNA)

ISIS still controls the eastern side of the river, including 8% of oil-rich Deir Ezzor province.

Syria's SANA news agency reported on Wednesday that Syrian forces have retaken dozens of villages west of the Euphrates river, with support from the US-led coalition, Russian forces, and Kurds militia.