A photo taken September 2022 from a Danish F-16 shows the Nord Stream 2 gas leak just south of Dueodde, Denmark. It was one of three attack sites on the Nord Stream gas pipelines in the Baltic Sea, with the other two on Nord Stream 1 northeast of Bornholm. Three of the four Nord Stream gas pipelines to Germany via Russia were hit by planted explosive devices only months after Russia's full-scale invasion and war in Ukraine. German prosecutors said Tuesday the suspect in Polish custody allegedly belonged to "a group of individuals who placed explosive devices on the Nord Stream 1 and Nord Stream 2 gas pipelines" that detonated nearly three years ago to the day. According to German officials, seven suspects part of a private diving school in Kyiv were connected to the Nord Stream pipeline explosion and have since been identified.