REUTERS

"This is unacceptable and runs counter to Japan's position," he said. "We sent a note of protest to Russia through diplomatic channels," TASS reported.

Russian Prime Minister Dmitry Medvedev signed a resolution earlier on giving names to five previously nameless islands of the Kurile chain.

Read alsoJapan PM comments on Russian missile deployment on disputed islesUNIAN memo. Kuril Islands, which Japan calls the Northern Territory, were occupied by the army of the USSR during the Second World War. In fact, the Kremlin and Tokyo have not yet signed a peace agreement since that time. Therefore, the Japanese side is trying to achieve peace and discussions with Moscow to return these territories.

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