N. Korea test plan concerns China, Japan

N. Korea test plan concerns China, Japan

The leaders of Japan and China said Sunday they were deeply concerned about a possible North Korean nuclear test and promised to cooperate in persuading Pyongyang to stand down, a Japanese official said. Meanwhile, a former South Korean lawmaker said North Korea denied a nuclear test was imminent, citing a Chinese diplomat who spoke to officials from the North on Sunday. China is North Korea's closest ally.