Lavrov's May 31 visit - his first to North Korea since 2009 - was seen as an attempt by Moscow to ensure its voice is heard in Pyongyang's diplomatic overtures with the United States and South Korea. He and Pompeo had discussions over dinner of steak, corn and cheese on Wednesday (Thursday NZT), Pompeo said in a tweet.
"Good working dinner with Kim Yong Chol in NY tonight".
"Looking forward to meeting with Kim Yong Chol in NY to discuss @Potus potential summit with Chairman Kim", Pompeo tweeted, using the shorthand for president of the United States.
Mr. Kelly then escorted the North Korean delegation along the Rose Garden colonnade to the Oval Office, where they met with Mr. Trump, Mr. Pompeo and others.
Meanwhile, North and South Korean officials continue their dialogue on Friday at the border village of Panmunjom.
And while Kim Jong-un, during a meeting with Russia's foreign minister in Pyongyang on Thursday, said the North's will for denuclearisation is "unchanged and consistent and fixed", it is still unclear if his vision fits with Washington's strict demands. I believe they will be coming down to Washington on Friday (Saturday NZT). A letter being delivered to me from Kim Jong-un. "It is very important to them". He added, "I think you're going to have a very positive result in the end. I said, 'Would I do that when we're talking so nicely?'" It is all a process.
He would not say that the summit is a definite go for Singapore on June 12 and could not say if that decision would be made after Trump reads Kim Jong-un's letter.
The U.S. president called off the summit last week, citing Kim's "open hostility".More news: Mattis Says US Will Continue Operations in South China Sea
The Singapore summit between President Trump and North Korean leader Kim Jong Un is back on for June 12, following a theatrical note exchange at the White House Friday.
He also urged the state to hold off on relinquishing their nuclear weapons until tangible action had been taken to lift the economic stranglehold. "The people of #NorthKorea can have a brighter future and the world can be more peaceful".
"I'd like to see it done in one meeting", he said. "Quick nuclear abandonment by Pyongyang is certainly a welcome thing", a column in the newspaper suggested, "but such a sharp change could take place only if the USA offers Pyongyang attractive rewards". He had announced just last week that he was canceling the meeting. Add North Korea as an interest to stay up to date on the latest North Korea news, video, and analysis from ABC News.
But he conceded that Kim Jong-un "wants to be careful" with his decision, and that "he is not going to run and do things" as demanded by the USA government. Relations turned sour again after George W Bush took office in early 2001 with a tough policy on the North.
White House officials cast the roller-coaster public statements as reflective of the hard-nosed negotiation by the two nations.
"It means missiles", Trump said. Trump hosted South Korean President Moon Jae-in last week.
Meanwhile, North Korea suggested during high-level talks on Friday that the two Koreas hold a joint celebration of the anniversary of a historic 2000 inter-Korean summit this month in the South, an official in Seoul said.