A Ukrainian citizen, suspected to be among the key coordinators behind the 2022 undersea explosions that damaged the Nord Stream gas pipelines between Russia and Germany, has been arrested in Italy, German federal prosecutors informed on Thursday.

The accused, Serhii K, was apprehended overnight by police in Misano Adriatico, a town near the Italian city of Rimini, officials said.

The blasts, which occurred three years ago on September 26, caused severe damage to the pipelines that were built to transport Russian natural gas to Germany via the Baltic Sea. The sabotage came at a time of heightened geopolitical tension, as European nations were attempting to reduce dependence on Russian energy following the Kremlin’s full-scale invasion of Ukraine.