
Smoke rises from an emergency service point after an airstrike at the rebel-held village of Maar Zita in Idlib province, Syria April 27, 2017. (Xinhua/Reuters Photo)
DAMASCUS, May 24 (Xinhua) -- At least 16 people were killed Wednesday by U.S.-led airstrikes on the positions of the Islamic State (IS) group in Syria's northern city of Raqqa, a monitor group reported.