Speaking at the 70th session of the UN General Assembly, Ukrainian President Petro Poroshenko condemned Russia's veto imposed on an international tribunal to bring to account those, who shot down Malaysian airlines flight MH17 over militants-held territory in Ukraine, saying that "everyone in this hall understands Russia's real motive."

"The second time Russia put its shameful veto on the draft resolution on establishment of the International Tribunal to investigate and bring to justice all responsible for Malaysian MH17 plane crush. By imposing its disgraceful veto on this draft resolution, Russia clearly demonstrated to the whole world its defiance in establishing the truth. Not just the truth about perpetrators of this terrorist attack and arms, used to shot down that plane. What is most important is the truth about those, who organized this crime and from which country the mentioned arms have been transported," Poroshenko said during the session in New York on Tuesday.

Moreover, the Ukrainian leader said the establishment of an international peacekeeping operation which could lead to the stabilization of the situation in Ukraine and stop the bloodshed has been also blocked because of the potential threat of Russia's veto.

"The use of [Russia] veto right as a license to kill is absolutely unacceptable Veto power should not be used as an act of grace and pardon for crimes," he stressed.