July 2 (UPI) — A Ukrainian national has been charged in Germany in connection with the 2022 bombing of the Nord Stream pipelines bringing natural gas 760 miles via the Baltic Sea from northwestern Russia to Lubmin in northeastern Germany.

Authorities allege the suspect, named only as Serhii K, led and coordinated an operation with seven others to sabotage the $17 billion gas projects on Sept. 26, 2022, according to reports in German media Wednesday. He is also charged with attacking and destroying civilian energy infrastructure and causing an explosion.

Prosecutors said he is the same individual who was detained by Italian authorities in August and extradited to Germany in November.

He denies all wrongdoing.

German prosecutors further allege he was a serving Ukrainian officer and that he and the others, who were also members of the Ukraine military, were “acting on behalf of state bodies in Ukraine” to deprive Moscow of energy revenues from the pipelines to fund its war against Ukraine.

The finger has variously been pointed at Ukraine, along with Britain and the United States, and even Russian itself, but the Federal Public Prosecutor General’s claim the attack was ordered by Kyiv was highly significant because Germany is one of Ukraine’s staunchest allies, providing military aid and political support.

Kyiv , which has always denied involvement, did not immediately respond to the accusation.

Three of the four pipelines were ruptured east of the Danish island of Bornholm in the attack. Nord Stream 1 was shut down at the time due to technical problems.

Nord Stream 2, a subsidiary of the Russian state-run energy giant Gazprom, was completed in September 2021 after being plagued problems including legal wrangles and U.S. sanctions targeting companies party to the project.

However, it never opened because Germany cancelled its certification process shortly before Russia’s full-scale invasion of Ukraine in February 2022 as it moved to wean itself from its reliance on Russian gas.

The project, which would have doubled Nord Stream’s gas capacity to 110 billion cubic meters annually — said by the company to be sufficient to supply to 26 million homes in Europe and critical to efforts to guarantee the European Union’s “security of supply of natural gas.”