But earlier this year the worldwide community was stupefied when Kim Jong-un invited US President Donald Trump to meet after months of escalating tensions between the leaders.
South Korea brought Kim's offer to meet to the White House last month, which Trump reportedly expected on the spot.
US and North Korean officials have held secret contacts recently in which Pyongyang directly confirmed its willingness to hold the unprecedented summit, the official told Reuters, speaking on condition of anonymity.
"While the press has reported that North Korea is willing to negotiate their nuclear programme, this is not exactly what North Korea said". Once a location is agreed upon the officials said that the date will be set and the agenda discussed in greater detail.
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Officials said the current target is late May or even June, according to CNN. South Korean President Moon Jae-in plans to meet with Kim at the end of April in the demilitarized zone between the North and South. -North Korea communications had taken place but said the two sides had held multiple direct contacts.
USA and North Korean intelligence officials have spoken a few times and even met in a third country, CNN reported.
South Korea's National Intelligence Service Chief Suh Hoon has been in close contact with his United States and North Korean counterparts, reported Korea Herald.
According to CNN, the talks between the USA and North Korea's intelligence officials are aimed at laying the ground for a meeting between Pompeo and the head of the North's Reconnaissance General Bureau, whose identity has not been confirmed.
North Korea was "suffocating" under worldwide sanctions, Nikki Haley, the USA ambassador to the United Nations, said on Thursday, adding, "They need an out".