Warplanes pounded the "Islamic State" (ISIS) terrorist group's de facto Syrian capital Raqa on Tuesday, killing at least 23 people including 13
jihadists, a monitoring group said, according to AFP.
The British-based Syrian Observatory for Human Rights said either the regime or Russian airforce was believed to have carried out the strikes.
"Thirteen members of the Islamic State group and 10 civilians were killed in at least 16 air raids on the group's positions and premises in several parts of Raqa city," Observatory chief Rami Abdel Rahman said.