Russian President Vladimir Putin said on Saturday that he would consider countries imposing a no-fly zone over Ukraine as participating in the conflict. 

“We will immediately consider them as participants in a military conflict, and it doesn't matter members of which organizations they are,” Putin said in a meeting with flight crewmembers of Russian national airlines. 

“It is impossible to do it, on the very territory of Ukraine, it's possible only from the territory of some neighboring states. But any movement in this direction will be considered by us as participation in an armed conflict,” Putin added.