While SDF was working on retaking Raqqa, Russian airstrikes backed the Syrian Army in breaking ISIS' three-year-long siege on Deir Ezzor.
The Syrian Army liberating the Deir ez-Zor region from terrorists is facing strong resistance and massive fire from areas where armed opposition groups and U.S. forces are stationed, the Russian Defense Ministry said.
The source told SANA that the army units in cooperation with the allied forces, crossed the Euphrates river from the direction of al-Jafra towards Huweijet Saqr, where they are now fighting fierce battles against ISIL in the area.
The simultaneous advancements against Daesh have raised concerns of clashes between SDF and the Syrian troops.
Coalition forces have been battling the Islamic State, also known as ISIL, ISIS and Daesh, from the east side of the Euphrates, while allies of Syrian President Bashar al-Assad, which includes Russian Federation, fight the terrorist group from the west side of the river.
CNN has previously reported that pro-regime forces had established a number of outposts and checkpoints in the area just outside the 55 kilometer "de-confliction" zone surrounding At Tanf, which was negotiated by Russian Federation and the US -led coalition. Two planes took off from the airport carrying aid to Deir Ezzor, Reuters said, citing Syrian state media and the Syrian Observatory for Human Rights.More news: Muschamp: South Carolina star Deebo Samuel out for season
According to the Syrian Army's Islamic State Hunters unit, its forces have crossed from the western bank of the Euphrates near Deir ez-Zor city to the eastern bank.
Late Monday, at least four people, among them a child, were wounded when a booby-trapped motorbike exploded in the north-eastern Syrian city of Qamishli, the Observatory said. On Monday, elite Syrian troops crossed the river, Russia's defence ministry said. That is, where SDF forces and U.S. special operations units are located, who are allegedly administering medical aid to these militants instead of liberating Raqqa.
The Euphrates slices diagonally across the province of Deir Ezzor, an oil-rich region that borders Iraq.
"We're ready for those if the forces of the regime don't go back to the other bank", he was quoted as saying.
The statement by the coalition Commander Paul E. Funk said that Russian forces had struck a target east of the Euphrates near Deir Ezzor city, causing injuries to coalition partner forces.
The attack - orchestrated by the al-Qaida-linked Hayat Tahrir al-Sham alliance (HTS), the Turkistan Islamic Party and Free Syrian Army affiliates - targeted government-held villages in northern Hama province.