Former Ukrainian Officer Faces Trial in Germany for Nord Stream Pipeline Sabotage

A former Ukrainian army officer is on trial in Germany in connection with the sabotage of the Nord Stream gas pipelines, which link Russia and Germany. The explosions in September 2022 damaged the undersea infrastructure, an event considered one of Europe's most significant acts of sabotage since World War II. The suspect, identified publicly as Serhii Kuznietsov and in court proceedings as Serhii K., faces charges including causing an explosion, property damage, disrupting public services, and being an accomplice to war crimes through the attack on civilian infrastructure.

Prosecutors allege that the defendant was part of a plot to permanently disrupt gas deliveries and prevent Russia from using revenue from these supplies to fund its military operations. According to the charges, the plot involved using a yacht that departed from the German port of Rostock. This vessel was reportedly rented using forged identification and intermediaries.

The explosions ruptured Nord Stream 1, which had been Russia's primary natural gas supply route to Germany before Russia cut off supplies in August 2022. Nord Stream 2, which had not yet entered service, was also damaged. Germany had suspended its certification process for Nord Stream 2 shortly before Russia's full-scale invasion of Ukraine in February 2022.

The suspect is alleged to have organized and carried out the detonation of at least four bombs, each weighing between 14 and 27 kilograms (approximately 31 to 62 pounds), at depths of 70 to 80 meters near the Danish island of Bornholm. He was apprehended in an Italian village in 2025 and subsequently extradited to Germany in November of that year. A second suspect was arrested in Croatia in August and is seeking asylum to fight extradition to Germany.

Initially, international observers pointed to Moscow as the culprit. However, investigations have increasingly explored the possibility of involvement by Ukrainian state security agencies, despite Ukraine's close alliance with Germany. Ukrainian President Volodymyr Zelenskyy has denied any Ukrainian involvement in the pipeline blasts. Russia, meanwhile, has accused U.S. and British intelligence agencies, as well as NATO, of involvement.

The pipelines themselves had been a point of contention, with the U.S. and some allies warning of increased dependence on Russian gas. The German government has largely refrained from commenting on the ongoing judicial process, emphasizing the independence of the judiciary.

Sixteen court dates have been scheduled through December 17, with further dates planned for January and February 2027. The date for a verdict has not yet been set.