“Here we speak with Poland in a unanimous voice: Nord Stream 2 is unacceptable and poses a threat to all of Europe,” Zelensky quotes Interfax as saying.

He noted that Ukraine and Poland support the diversification of energy supply sources, as well as energy cooperation between Poland, the USA and Ukraine.

Earlier, the Polish state-owned oil and gas company PGNiG announced that it would begin supplying liquefied natural gas from the United States to Ukraine as early as 2019.

Political scientist Pyotr Fedosov in an interview with Nation News commented on the positions of Russia and Germany on the Nord Stream-2.