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North Korean leader Kim Jong-un made a surprise visit to China on Saturday, crossing a newly opened bridge into the border city of Dandong and meeting with Beijing's top political adviser, according to Yonhap and KBS World. The trip, confirmed by North Korea on Sunday, is seen as reaffirming 'blood ties' between the two countries and comes days before the anniversary of Chinese troops entering the 1950-53 Korean War, Korea Times reports. South Korean government sources told Yonhap that Kim arrived in Dandong, marking his first visit to China in more than a year. Foreign media have speculated on the trip's purpose, with Reuters describing it as significant, KBS World notes. An editorial in the Korea Times urges that the visit 'must lead to restraint,' saying the peninsula's future cannot be understood through inter-Korean relations alone.