SEOUL, Sept. 6 (Xinhua) -- Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un reconfirmed his firm commitment to the complete denuclearization of the Korean Peninsula, a South Korean presidential special envoy said Thursday after visiting Pyongyang the previous day.

Chung Eui-yong, South Korean President Moon Jae-in's top national security adviser who led the five-member special delegation, told a press briefing that the DPRK leader reconfirmed his firm commitment to the denuclearization of the peninsula, and expressed his willingness to closely cooperate with South Korea and the United States for the denuclearization.

Chung and four other delegates met Kim in Pyongyang during their one-day mission as special emissaries, delivering Moon's letter to the DPRK leader.

Chung said the two Koreas agreed to hold the third Moon-Kim summit in the DPRK's capital city from Sept. 18-20.