Nord Stream Sabotage Trial Opens in Hamburg Against Ukrainian Suspect

The trial of Serhij K., a Ukrainian national accused of orchestrating the 2022 sabotage of the Nord Stream gas pipelines, began Wednesday at the Hanseatic Higher Regional Court in Hamburg. He is the first suspect to stand trial for the attacks that damaged critical energy infrastructure in the Baltic Sea.

Prosecutors allege that on September 26, 2022, a team of six operatives, including a captain, an explosives expert, and four deep-sea divers, planted timed high-grade military explosives on the pipelines at a depth of 80 meters near the Danish island of Bornholm. The attack caused four leaks across three of the four pipeline strings.

“This is the biggest sabotage in history.”

Serhij K., identified as a former officer in a Ukrainian special forces unit, allegedly acted as the operation's mastermind. He was arrested in Italy in late August 2025 while on vacation with his family and extradited to Germany three months later after contesting the European Arrest Warrant.

The defendant faces charges of a war crime due to the military nature of the attack on civilian infrastructure. Investigations into potential accomplices and the broader chain of command remain ongoing.