During an interview with Lebanon-based El-Nashra newspaper, a Syrian military source said that the foreign-backed armed mercenaries were killed when positions of armed opposition groups were ambushed by Syrian army units.
The Syrian source indicated that all those killed in the operation were of Qatari, Saudi and Jordanian nationalities.
Syrian government troops have been inflicting heavy losses on foreign-backed terrorist groups in different areas across the country, Al-Manar reported.