The Attorney General of Germany, Jens Rommel, has charged Ukrainian Sergey K. with sabotage on the "Nord Stream" and "Nord Stream 2" pipelines. This was reported by the ARD television channel. The man is accused of attacking civilian energy infrastructure, which, according to international law, is a war crime, as well as causing an explosion using explosives and destroying an engineering structure. According to the investigation, Sergey K. led a group of saboteurs and also commanded aboard the sailing yacht Andromeda, which, according to German authorities, was used to deliver explosives to the site of the pipeline sabotage in 2022. Investigators from the Federal Criminal Police Office and the Federal Police found traces of a mixture of military explosives, hexogen and octogen, on board this yacht. A total of seven suspects were involved in the Nord Stream sabotage case. One of them died during the investigation in the war in Ukraine. Sergey K. was arrested in the summer of 2025 while on vacation in Italy. He is currently in a pre-trial detention center in Hamburg. According to ARD, the evidence collected against the Ukrainian is "very substantial." Apparently, the man called his relatives from the pre-trial detention center in Italy and during the conversation revealed his involvement in the explosions. As noted by Tagesschau, citing sources in the intelligence services, evidence against him was also found on the Ukrainian's mobile phone, as reported by Deutsche Welle. According to the Federal Court of Justice of Germany (BGH), Sergey K. served in an elite unit of the Armed Forces of Ukraine and held the rank of officer. The BGH's ruling from December 2025 also states that the sabotage on the "Nord Streams" was most likely carried out "on behalf of a foreign state" as part of an intelligence operation. According to this document, responsibility for these operations lies with state agencies in Kyiv.