SEOUL, South Korea — The North Korean leader, Kim Jong-un, used his meeting with the visiting vice president of China this week to stress a “blood” alliance with Beijing, and expressed his support for reconvening six-nation talks on ending the North’s nuclear weapons program, the official news media of the two allies reported on Friday.

The Chinese vice president, Li Yuanchao, arrived in Pyongyang, the North Korean capital, on Thursday to attend ceremonies observing the 60th anniversary of the end of the Korean War, whose battles were halted with an armistice signed on July 27, 1953. China fought for North Korea during the war, which ended in a deadlock against the American-led United Nations forces on South Korea’s side.

Reporting on Mr. Kim’s Thursday meeting with Mr. Li, the North Korean and Chinese news media said on Friday that the two sides stressed the importance of increasing bilateral ties. But they also highlighted the different priorities China and the North appeared to place on their relations, as the allies tried to mend their strained ties after the North’s recent nuclear test and other provocations angered many Chinese.

Mr. Li delivered a personal message from President Xi Jinping to Mr. Kim. In his published comments, Mr. Li — the highest-ranking Chinese official to visit North Korea since Mr. Kim took over after the death of his father, Kim Jong-il, in late 2011 — appeared to nudge North Korea to rein in its confrontational approach.