(ATTN: CLARIFIES second para; ADDS Pompeo's comments in fifth para)
SEOUL, Oct. 7 (Yonhap) -- United States Secretary of State Mike Pompeo said Sunday he had "good, productive conversations" with North Korean leader Kim Jong-un in Pyongyang on the regime's denuclearization process and the holding of the second summit between the two nations.
Pompeo met with Kim for three and a half hours, which included a 90-minute luncheon, and then flew to Seoul later in the day to share the outcome of their meeting with South Korean President Moon Jae-in and Foreign Minister Kang Kyung-wha.
"As President Trump said, there are many steps along the way and we took one of them today. It was another step forward," Pompeo said in a meeting with Moon at the Blue House. "So this is, I think, a good outcome for all of us."
The top U.S. diplomat thanked the Seoul government for playing a critical role in negotiations for Pyongyang's denuclearization and other peace process.
"You all have been an incredibly important part of the success that we have all had to date, but what we all hope will be the denuclearization and the change in the relationship here on the peninsula," Pompeo said.
Moon also expressed gratitude for Pompeo's visit to Seoul shortly after his Pyongyang trip, saying "the world's eyes are on the outcome" of their meeting.
"Today is a very important day for the U.S. as well as South and North Korea," Moon said. "I hope Secretary Pompeo's North Korea visit and the upcoming second U.S.-North Korea summit will create good momentum for a breakthrough in the denuclearization and irreversible progress in the peace process on the Korean Peninsula."
During a closed meeting with Moon, Pompeo said he and Kim agreed to arrange the second U.S.-North Korea summit "at the earliest possible date" and continue to discuss the specifics of date and location, Moon's chief press secretary, Yoon Young-chan, said in a written release.
Pompeo also discussed additional denuclearization steps the reclusive regime can take, as well as Washington's monitoring of the verification process and "corresponding measures," according to Yoon.
"The two sides will form working-level negotiation teams to discuss North Korea's denuclearization process and Trump-Kim summit schedule," Yoon said.
Pompeo's fourth trip to Pyongyang comes after Kim's reaffirmation of his resolve to denuclearize during his third summit with Moon in Pyongyang last month.
The North has committed to taking additional denuclearization steps, such as shutting down its long-range missile engine test site and launching pad in Dongchang-ri on the west coast in the presence of international inspectors and closing its main Yongbyon nuclear complex should the U.S. take "corresponding measures."
Shortly after landing at Osan Air Base, south of Seoul, after 5 p.m., Pompeo posted a photograph of himself meeting with Kim in his Twitter, with their top aides in the background.
Stephen Biegun, the U.S. Special Representative for North Korea, Kim Yo-jong, the North Korean leader's younger sister, and Kim Song-hye, a senior North Korean official in charge of reunification, were seen behind Pompeo and Kim in the photo.
Pompeo tweeted he had "a good trip to Pyongyang" and "continue to make progress on agreements made" at the historic Singapore summit in June.
He visited Tokyo on Saturday and will head to Beijing before returning to the U.S. on Monday.
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