From the message of the main defense agencies:
Taking off from the airfield on the territory of the Russian Federation and covering a distance of more than 2 thousand kilometers, the planes hit the strongholds of terrorists in the vicinity of the village of El Katya. As a result of the strike, the strongholds, the accumulations of manpower and the armored vehicles of the militants were destroyed.
The article states that the strikes on single objects were carried out by Su-24 bombers, which took off to the air to perform a combat mission from the Hmeimim airbase in the province of Lattakia.
It is noted that the data of objective control confirmed the successful destruction of the objects of the pseudo-caliphate terrorists.
There is no data on the airspace of which countries long-range bombers of the Russian Aerospace Forces flew to accomplish the mission to the Syrian province of Deir-ez-Zor.