Ex-Ukrainian Officer on Trial in Germany for Nord Stream Pipeline Sabotage

A former Ukrainian army officer is on trial in Germany for his alleged role in the undersea explosions that damaged the Nord Stream gas pipelines linking Russia and Germany in 2022. The suspect, identified in court as Serhii K. but publicly named as Serhii Kuznietsov, faces charges of causing an explosion, damaging property, disrupting public service, and being an accomplice to war crimes for allegedly attacking civilian infrastructure.

The trial is being held under strict security measures at the Hanseatic Higher Regional Court in Hamburg. Prosecutors allege that the defendant was involved in the Sept. 26, 2022, explosions that ruptured Nord Stream 1, Russia's primary natural gas supply route to Germany until Moscow cut off supplies in August 2022, and damaged Nord Stream 2, which never entered service.

According to the charges, the plot aimed to permanently disrupt gas deliveries and prevent Russia from financing its military operations. Investigators have explored suggestions that Ukrainian state security agencies may have been involved, despite Ukraine's close ties with Germany. The suspect allegedly organized and carried out the detonation of at least four bombs, each weighing between 31 and 62 pounds, at depths of 230 to 263 feet near the Danish island of Bornholm.

Prosecutors state that the defendant and others used a yacht that departed from the German port of Rostock. The yacht was reportedly rented from a German company using forged identification and intermediaries. The suspect was detained in an Italian village in 2025 and extradited to Germany in November. A second suspect was arrested in Croatia in August on a European warrant but has applied for asylum there to fight extradition.

Russia has claimed that U.S. and British intelligence agencies were involved in the explosions, while various Western countries initially blamed Russia. Ukrainian President Volodymyr Zelensky has denied any Ukrainian involvement.

The German government has stated that the case is in the hands of the independent judiciary. Sixteen court dates have been scheduled through December 17, with additional dates planned for January and February 2027. The verdict's announcement date is not yet known.