At least 80 Syrian soldiers killed by U.S.-led air strike: monitor

>

Russian jets had been bombing in the same area at the same time, the Observatory said. The source at the airport said the air strike had paved the way for Islamic State fighters to overun the position at Jebel Tharda, the Observatory said.

It said earlier that only 30 soldiers had been killed, citing the same source.

(Reporting by Angus McDowall; Editing by Louise Ireland)