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Korean Central News Agency via Korea News Service) JAPAN OUT UNTIL 14 DAYS AFTER THE DAY OF TRANSMISSION, Associated Press
In this Tuesday, May 24, 2011 photo released by Korean Central News Agency via Korea News Service in Tokyo, Amb. Robert King, center, a U.S. special envoy for North Korean human rights issue, and his party arrive at Pyongyang airport in North Korea.

BEIJING — North Korean leader Kim Jong Il reportedly has arrived in Beijing and is expected to meet with the leader of his country's key ally.

Yonhap News agency in South Korea said Kim arrived in Beijing at 9 a.m. Wednesday by train and went to the Diaoyutai State Guesthouse. The report says he will meet with Chinese President Hu Jintao.

Yonhap did not cite sources in the report. The Chinese state guesthouse would not comment and the North Korean Embassy said it had no information.

China said earlier it invited Kim to study economic reforms in China, North Korea's sole major international ally and a major source of economic support. This visit is Kim's third in about a year.