Russia takes restrictive measures against Ukraine, Turkey

It is also noted that the legal action does not exclude possibility of debt settlement through dialogues.

Ukraine got a 3-billion-dollar loan in the form of Eurobonds from Russia in December 2013 to shore up its economy amid financial crisis. The loan matures on Dec. 20, 2015.

The Ukrainian side stressed previously that no other terms would be provided to Moscow than the debt-restructing agreement reached in August between Ukraine and its other international creditors.

Restrictive measures against Turkey also came into force on Friday, which were adopted by Russian side in retaliation for Turkey's downing of a Russian Su-24 attack aircraft in November of 2015.

The import of Turkish foodstuffs and other agricultural products to Russia is banned starting from Friday.

According to a decree signed by Putin on Nov. 28 of 2015, Russia would stop importing a wide range of Turkish agricultural products including fruit and vegetables, salt, poultry products and so on.

While charter flights in both directions were banned, the visa-free travel regime between the two countries was suspended to "ensure national security of the Russian Federation from criminal and other illegal activities."

Russian companies will be banned from hiring Turkish citizens starting from Friday.

A total of 53 entities have been exempted from the ban on hiring Turkish citizens. The exempted companies will, however, be prohibited from exceeding the total number of hired Turkish employees as of Dec. 31, 2015.

Moreover, since Friday, companies owned by Turkey or Turkish citizens were banned from providing services for state and municipal needs in Russia and participating in such areas as construction, tourism, hotel business and lumber.

Turkish Prime Minister Ahmet Davutoglu has blamed Russia for these restrictive measures, claiming that Turkey has considered possible measures against Russia and will impose sanctions if necessary.