Meanwhile, Airwars reports six civilians were killed and several others injured in alleged coalition airstrikes in Raqqa, Syria. Airwars also reported that strikes in the eastern province of Deir ez-Zor killed up to 16 civilians Tuesday, with different sources blaming Russia, Syria and the U.S.-led coalition for the deaths. Meanwhile, the Syrian city of Daraa came under heavy bombardment Thursday from forces loyal to President Bashar al-Assad, who reportedly dropped barrel bombs from helicopters.