The project, now about 95% complete, would bypass Ukraine, depriving it of lucrative transit fees and potentially undermining its struggle with Moscow.
Poland said that the waiver of U.S. sanctions on the company behind Russia’s Nord Stream 2 was a threat to energy security in central and eastern Europe.
The Biden administration waived sanctions on Nord Stream 2 AG and its chief executive earlier this week as the U.S. seeks to rebuild ties with Germany, after relations deteriorated under Republican former President Donald Trump.
Gazprom and its Western partners are racing to finish the pipeline to send natural gas under the Baltic Sea.
“The project changes the structure of powers in central and eastern Europe when it comes to energy security,” Muller told Poland’s Radio Plus.
Poland, which has taken steps to reduce its reliance on Russian gas supplies, has on many occasions expressed its objections to Nord Stream 2, saying it will further strengthen Gazprom’s dominant position in the region.
Warsaw had welcomed decisions by the former U.S. administration over Nord Stream 2 sanctions, Muller said.