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North Korean leader Kim Jong-un visited China on Saturday, October 24, crossing a newly opened bridge into the border city of Dandong and meeting with Beijing's top political adviser, Wang Huning, amid a push to strengthen bilateral ties, Yonhap and the Korea Times report. Kim arrived via the new cross-border bridge and was seen off by China's top political adviser when he left, according to Xinhua via Yonhap. State media later reported Kim vowed to advance the two countries' longstanding relationship 'forged in blood,' the Korea Times adds. South Korean government sources confirmed the visit, which was described as a surprise trip.