俄外长拉夫罗夫：美方还没释放被扣押的“水手”号油轮上两名俄罗斯公民

Group 1 - The core viewpoint of the article is that Russia is pressing the United States to release two Russian citizens detained on the "Mariner" oil tanker, with Russian Foreign Minister Lavrov stating that the U.S. has not yet fulfilled its promise to release them [1][3] - Lavrov expressed regret that the U.S. has not implemented the decision to release the Russian citizens, despite earlier indications from U.S. leadership that they would be freed [3] - The "Mariner" oil tanker, previously known as "Bella 1," was involved in an incident where it successfully prevented U.S. personnel from boarding and later appeared in the Russian official ship registry under its new name [3]