Photo/IllutrationNorth Korea leader Kim Jong Un, right, waves along with Li Zhanshu, head of China’s Standing Committee of the National People’s Congress, during the 70th anniversary celebration of North Korea's founding on Sept. 9. (Kenji Minemura)

BEIJING--North Korean leader Kim Jong Un blamed the United States for the "stagnation" in his nation's efforts toward denuclearization in a meeting on Sept. 9 with a top Chinese official.

Kim met with Li Zhanshu, an executive of the National People’s Congress and China’s ruling Communist Party third-ranking official, who is visiting North Korea for the 70th anniversary of its founding, China Central Television (CCTV) reported.

“We would like the United States to take some kind of action that is reasonable, then we would like to move forward along the process of a political solution,” Kim told Li during their meeting.

The state-run broadcaster also reported that Li admired North Korea’s stance toward denuclearization, telling the North Korean leader, “We appreciate your proactive efforts.”

Kim replied, “We are taking measures by sticking firmly to the agreement that was made during the summit meeting (with U.S. President Donald Trump) in Singapore.”

Kim, however, did not mention what measures North Korea is taking.

Li hand-delivered a signed letter from Chinese President Xi Jinping to Kim.

In the letter, Xi praised Kim for advancing the “new course of the strategy” in which economic development and improvement of citizens’ lives are focused on.

Xi also made a public appeal about their bilateral ties saying in his letter, “We would like to further develop relations between China and North Korea.”

Kim also showed his desire to strengthen ties between the two nations, saying, “We would like to use our energy mainly for economic development, as well as learn from the experiences of China and make further cooperation with China in various fields.”