A Ukrainian man's trial began in Hamburg, Germany on October 14 2026. France 24 identifies him as Serhii K. The Guardian names him as Serhii Kuznetsov.

France 24 calls him a former Ukrainian military officer. The Guardian calls him a special forces officer.

Prosecutors accuse him of organizing the operation to blow up the pipelines. They say he led a group of Ukrainian agents.

The group included divers and an explosives expert. Prosecutors also accuse him of helping war crimes by attacking civilian infrastructure.

Other charges include causing an explosion, damaging property and disrupting public services. Kuznetsov denies involvement in the attack.

The trial is expected to last months. The Nord Stream pipelines link Russia and Germany.

The pipelines were blown up in September 2022. The blasts left them badly damaged. They also cut western Europe off from Russia's biggest gas source.