On Sunday, Pyongyang said it had successfully conducted another test at a satellite launch site aimed at "restraining and overpowering the nuclear threat" of the United States, which experts said could help North Korea build more reliable intercontinental ballistic missiles.

Nuclear negotiations between Washington and Pyongyang have faltered after the collapse of a February summit between Kim Jong Un and Trump.

In a statement released by North Korea’s official Korean Central News Agency, Choe expressed optimism over the outcome of the meeting but did not say where it would take place.

Trump praised the North Korean leader in his tweets, saying he has a “great and beautiful vision for his country.”

Trump became the first sitting U.S. president to set foot in North Korea on Sunday when he met Kim in the Demilitarized Zone (DMZ) between the two Koreas and agreed to resume stalled nuclear talks.

“I was proud to step over the line,” Trump told Kim as they met in on the South Korean side of the truce village of Panmunjom. “It is a great day for the world.”

Pompeo said he hoped that a letter recently sent by U.S. President Donald Trump to North Korean leader Kim Jong Un would “provide a good foundation for us to begin to continue these important discussions with the North Koreans to denuclearize the peninsula.”

Trump's remarks to reporters on the South Lawn of the White House represented a fresh attempt by the president to cozy up to theNorth Korean leader, a policy that has drawn criticism for seeming to overlook Kim's autocratic rule.

U.S. President Donald Trump said Monday that he is not "personally bothered" by recent short-range missile tests that North Korea conducted this month, breaking with Japanese Prime Minister Shinzo Abe, who is hosting the president on four-day state visit full of pageantry

UN ambassador Kim Song said at a news conference Tuesday that the "heinous act" of seizing the ship was aimed at bringing maximum pressure on North Korea to make it "kneel down."