The U.N. Security Council would meet on Monday to discuss North Korea's nuclear test, Russia's U.N. ambassador Vitaly Churkin was quoted as saying by Itar-Tass news agency. Russian officials told Reuters they were studying reports of the test. Moscow currently holds the rotating monthly presidency of the Security Council. "Japan made a request to the president of the Security Council that they hold a Security Council meeting on North Korea," said a diplomatic source, asking not to be identified. The source said Security Council talks might be held later on Monday, although that was tentative.