A North Korean delegation arrived in Beijing on Monday. The two allies stepped up diplomatic contacts ahead of a meeting between North Korea’s leader Kim Jong-un and US President Donald Trump. Japanese broadcaster NHK showed images of officials leaving the VIP area of the Chinese capital’s airport. According to the report, the group had arrived at the Diaoyutai State Guesthouse. The identity of the visitors was not immediately known. Kim made his second trip to China in less than two months to meet with President Xi Jinping a week ago.