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North Korean leader Kim Jong-un arrived in China's border city of Dandong on Oct. 24 via a newly opened bridge linking the two nations, according to a South Korean government source cited by Yonhap and the Korea Times. The visit is described as a surprise, his first to China in more than a year, and he was later seen off by China's top political adviser, with a ruling party source saying he appeared to plan to return home that day. Korean media are reporting the event as a notable diplomatic move, though no further details on the purpose of the trip have been confirmed.