Nord Stream Sabotage Trial Begins in Hamburg as Defense Challenges War Crime Charges

Multiple underwater explosions disabled the Nord Stream 1 and 2 pipelines on September 26, 2022. These pipelines previously supplied half of Germany's natural gas. Swedish seismologists detected the blasts. The explosions ruptured three of the four pipeline strings. Germany cancelled approval for the Nord Stream 2 project shortly before the Russian invasion of Ukraine in 2022. German authorities identified Serhii Kuznietsov as a primary suspect in the sabotage. A trial in Hamburg serves as the first major legal proceeding regarding the destruction of the infrastructure. Prosecutors allege that Kuznietsov led a team that traveled through Poland on a forged Ukrainian passport. The team used a sailboat hired in Rostock to reach the Danish island of Bornholm. They then attached explosives to the pipelines.

1. Prosecutors maintain that the pipeline destruction constitutes a war crime because the act targeted civilian infrastructure. The German federal prosecutor's office formalized these charges in a statement on July 2, 2026. This filing established the legal basis for current proceedings in Hamburg.

2. Authorities have arrested two suspects. Serhii Kuznietsov was arrested in Italy in August 2025 and extradited to Germany in November 2025, while a second suspect, Vladimir Z., was arrested in Croatia in August 2026, with extradition approved in September 2026.

1. Defense attorney Nicola Canestrini argued on October 14, 2026, that the case should be dismissed because the Ukrainian government has sworn his client to secrecy about the case or evidence with his legal team. This restriction limits the defendant's ability to prepare a defense.

2. The defense team has challenged the classification of the act as a war crime. Attorney Nicola Canestrini argued in court on October 14, 2026, that the Nord Stream pipeline functioned as a 'Russian weapon' due to its role in funding Moscow's military, questioning the validity of the charges.