 Moscow believes the eastern Lomonosov Ridge and the Mendeleyev Ridge are an extension of the Siberian continental shelf.Until Denmark filed its claim, the Russian claim did not cross the Russia-US Arctic sector demarcation line, nor did it extend into the Arctic sector of any other Arctic coastal state.On December 20, 2001, Russia made an official submission into the UN Commission on the Limits of the Continental Shelf in accordance with the United Nations Convention on the Law of the Sea (article 76, paragraph 8).