More than 550 Islamist fighters and 32 civilians have been killed in Syria during a month of airstrikes by U.S.-led forces.
The Syrian Observatory for Human Rights says that of those deaths, 464 of the fighters were from ISIS, while 57 were from the al Qaeda-affiliated Nusra Front. Of the civilians, six were children and five were women.
The airstrikes have hit targets in the Syrian provinces of Aleppo, Deir al-Zor, Idlib, Raqqa, and al-Hassakah, the Observatory reports.