The visit comes after hopes grew last week for a breakthrough to bring peace to the divided Korean Peninsula, following a historic summit between North Korean leader Kim Jong Un and South Korean President Moon Jae-in at which the pair vowed “complete denuclearization.”

China’s top diplomat Wang Yi to visit North Korea this week-- Reuters

Mr. Wang’s two-day trip to Pyongyang, which ended Thursday, was the second such visit by a senior Chinese official since Mr. Kim traveled to Beijing to meet Mr. Xi, easing tensions between the neighbors and allies.

Kim Jong Un Repeats Commitment to Denuclearization to China -- The Wall Street Journal