The former spy chief's current official position is vice-chairman of the Central Committee of the Worker's Party of Korea, but he rose to prominence as Pyongyang's chief military negotiator during inter-Korean talks between 2006-08.
Pompeo also said he had a "working dinner" with Kim Yong Chol, adding that their menu included steak, corn, and cheese. Immediately afterward, he tweeted that he had had substantive talks on the priorities for the potential summit.
This AP photo shows U.S. Secretary of State Mike Pompeo arriving at the venue of his dinner with Kim Yong-chol, a vice chairman of North Korea's ruling Workers' Party's Central Committee, in NY on May 30, 2018.
"We had hundreds of new sanctions ready to go on", he said.
After exchanging threats and insults since Mr Trump became President previous year, the United States and North Korea have been trying to set up a summit - originally planned for Singapore on June 12 - between their leaders, at which Mr Trump wants to pressure Pyongyang into giving up its nuclear weapons. "I said, 'Would I do that when we're talking so nicely?'"
Militants kill one in attack on interior ministry in Kabul
Interior Ministry spokesman Najib Danish says one policeman was killed and another five were wounded. There have also been numerous attacks on government buildings and at police checkpoints.
Trump appeared to significantly lower expectations for the outcome of the historic summit, frequently describing it as the start of a process and not the place where the two leaders were likely to sign any agreement.
"Since the president's May 24 letter to North Korean leader Kim Jong Un, the North Koreans have been engaging", Sanders said.
Pompeo said he believes North Korea is contemplating a new strategic path forward, but he cautioned that the country would "have to choose a path that is fundamentally different" to achieve security - meaning complete, verifiable, irreversible denuclearization.
Last month North Korea's foreign minister Ri Yong Ho held rare talks with Lavrov in Moscow as Pyongyang moves to improve strained ties with global powers.
Trump views a summit as a legacy-defining opportunity to make the nuclear deal that has evaded others, but he pledged to walk away from the meeting if he believed the North wasn't serious about discussing dismantling its nuclear program. "As we move to adjust to the political situation in the face of USA hegemonism, I am willing to exchange detailed and in-depth opinions with your leadership and hope to do so moving forward", Kim told Sergey Lavrov.
Trump also says he may at some point make public an earlier letter he received from Kim Jong Un. A letter being delivered to me from Kim Jong-un.
Zidane resigns as Real Madrid manager
Zidane took the decision after meeting with Real president, Florentino Perez , earlier in the day at the training ground. They have always backed me. "This is my decision, maybe I am mistaken, but after three years I see this as the moment".
"I will travel to Singapore on June 12".
The North Korean mission at the United Nations did not respond to an email seeking comment Thursday, and phone calls were not answered. The last official of his stature to visit the United States was Jo Myong Rok, the late first vice chairman of the National Defence Commission, who visited Washington in 2000, South Korea's Unification Ministry said.
The White House emphasised that it has remained in close contact with South Korean and Japanese officials as preparations for the talks continue.
However, Trump on Thursday conceded for the first time that the negotiations with Pyongyang might require more than one summit.
But he has had two summit meetings in recent weeks with South Korea and made two visits to China as part of a campaign of diplomatic outreach aimed at easing Pyongyang's isolation and US -led worldwide sanctions.
Trump says he'll pardon conservative commentator, maybe Martha Stewart, Rod Blagojevich
D'Souza described being locked up with 120 "hardened felons" as an "eye-opening experience" but that he "came out of it fine". Also, then-U.S. attorney Patrick Fitzgerald, a longtime friend of Comey , prosecuted the case.