Underwater explosions rupture three of the four Nord Stream gas lines between Russia and Germany in the Baltic Sea. The attack ends any prospect of restoring Russian pipeline gas to Germany.
Contested history
Consensus: Investigators agree the pipelines were deliberately blown up; Sweden and Denmark closed their probes in 2024, and German prosecutors in 2026 charged a Ukrainian national as coordinator of a team using a sailing yacht. He denies it and Ukraine denies involvement.
A small team using a chartered yachtDebated
German investigators linked explosive traces to the yacht Andromeda and filed charges in 2026; no trial has reached a verdict.
The US Navy carried out the attackUnsupported
The claim rests on a single anonymous source cited by journalist Seymour Hersh; US officials deny it.
Russia sabotaged its own pipelinesSpeculation
Some officials suggested it early on, but no evidence has emerged.