Russian aerospace forces in Syria several times rose to attack unknown aircraft.

The source of the information resource Avia.pro reports that over the past two weeks, Russian airborne fighter jets have repeatedly lifted from the Russian military air base Khmeimim to carry out attacks on unknown planes located either near the borders of Syria or having violated the airspace of this Arab republic. The fighters were armed exclusively with air-to-air missiles, which emphasizes the fact that it was a readiness to attack detected targets.

From two weeks until now the #RuAF Su-30 / 35s are taking off from Khmemeim AB # Syria with only AA armament.

- @Syrian_MC (@Syrian_MC) October 11, 2019

According to the source, we are talking about Russian Su-30 and Su-35 fighters, and a number of other sources report that the main reason for the flights was either the Syrian Air Force cover, when attacking Idlib province, or due to approaching Syrian border of Israeli military aircraft.

It should be noted that no official comments on this matter were made by the command of the Russian air forces in Syria, however, several independent sources claimed that Russian combat aircraft were seen chasing unknown aircraft, either violating or approaching the borders of Syria.