MOSCOW, December 29 (RAPSI) - Russia's Supreme Court has ruled on Monday behind closed doors to put the Islamic State and Jabhat al-Nusra on a terrorism blacklist, RAPSI learnt in the court.

From now on, the activity of these organizations is officially outlawed on the territory of Russia.

The claim was filed with the court by the Prosecutor General’s Office.

Expansion of the Islamic State that has spread across a significant part of Iraq and Syria has become a major threat. According to the CIA, the group consists of some 30,000 militants. It has declared caliphate in the seized territories and intends to continue expanding its area of influence.

There is no single front to fight the Islamic State. The group is opposing the government forces of Syria and Iraq, the international coalition led by the US – so far limited to air strikes – as well as Iraqi and Syrian Kurds. The ongoing military action has killed thousands of civilians and displaced hundreds of thousands. Several thousands have been taken hostage by the Islamic State.

Experts on Oriental studies questioned by RIA Novosti foresee that in 2015, the situation will remain unstable and the international coalition will not achieve much success. Several experts believe that the US is not exactly striving for complete elimination of the IS as the threat is pushingcountries in the region to cooperate more closely with the US.