DAMASCUS, Feb. 26 (Xinhua) -- Airstrikes of the U.S.-led anti-terror coalition against an area in Syria's eastern province of Deir al-Zour have killed 25 civilians, a monitor group reported on Monday.
The airstrikes targeted the last Islamic State (IS) pocket on the eastern bank of Euphrates River on Sunday, said the Syrian Observatory for Human Rights.
The London-based watchdog group said half of those killed were children.
Meanwhile, Syria's state news agency SANA said 29 people were killed and tens of others wounded by the U.S.-led airstrikes on the towns of Shufeh and Zahrat Aloni in the eastern countryside of Deir al-Zour.
Last week, SANA said 15 civilians were killed by U.S.-led airstrikes on Deir al-Zour.
The U.S.-led coalition has been backing the Kurdish-led Syrian Democratic Forces (SDF) in their push to dislodge IS from the eastern bank of the Euphrates, where major oil and gas fields are located.
In the process, dozens of civilians have been killed by the U.S.-led coalition airstrikes in northern and eastern Syria.