The top U.S., North Korean and Chinese nuclear envoys have met in Tokyo, a Chinese consular official said Tuesday. U.S. Assistant Secretary of State Christopher Hill met with North Korean chief negotiator Kim Kye Gwan and Chinese Vice Foreign Minister Wu Dawei at the Chinese embassy in Tokyo, according to consular official Li Wen Ling. Hill, who is in Tokyo for a private security conference, had earlier denied plans to meet the North Koreans directly.