“Moscow is deeply worried by this dangerous development, the circumstances of which demand an explanation,” said Russian Foreign Ministry spokesman Alexander Lukashevich.

Russia has sent a letter to the UN complaining about Israel’s “aggressive action,” stressing that such attacks should not take place in the future, he added.

Israeli warplanes carried out two air assaults against an area of the Damascus International Airport and another airport in the town of Dimas on Sunday.

The Syrian army issued a statement later in the day, saying the airstrikes by Tel Aviv were aimed at helping the ISIL Takfiri terrorists operating in the Arab country.

The Damascus International Airport is located southeast of the Syrian capital near areas such as Eastern Ghouta, where the ISIL militants have gained control over much of the Syrian territory.

Israel has carried out several airstrikes in Syria since the start of the conflict in the country in 2011.