"We've never begged for dialogue with the USA and it will be the same now and forever", Jo Yong Sam, a senior foreign ministry official, was quoted as having said by the KCNA.
Vice President Mike Pence will also travel to Pyeongchang and join the USA delegation.
Another member of the high-level delegation, Kim Jong Un's younger sister, Kim Yo Jong, was blacklisted by the U.S. Treasury Department previous year, but not by the United Nations.
Among them will be the sister of North Korea's leader Kim Jong Un.
Iran has summoned South Korea's ambassador over media reports that Iranians at the Pyeongchang 2018 Olympic Winter Games would not receive the latest Samsung mobile phone given as a gift to most other athletes. In a speech, he declared that North Korea was a "world-class military power" and warned that it would prevent aggressors from infringing on North Korean sovereignty "even by 0.001 millimeter".
Sokeel Park is the director of research and strategy at Liberty In North Korea, a leading charity which focuses on the rescue and rehabilitation of North Korean refugees, and which seeks to broaden the narrative that exists about the notoriously enclosed nation.
"There are no plans to meet with any North Korean officials during or after the Olympics; I want to be clear about that".
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But sceptics think the North is trying to use the Olympics to weaken US-led sanctions and pressure against the country and buy more time to advance its nuclear weapons and missiles programme. There's another brother, Kim Jong Chul, but he doesn't have any kind of role in the North Korean government.
North Korea probably thought that including Choe with Yo-jong would make it impossible for South Korea to refuse, but it is also clearly bent on breaking the sanctions where it can.
But none of the missiles that are the highlight of the parades for Pyongyang-watchers, who examine them closely for clues about the sources and progress of its technology, had so far been spotted, it added.
Tanks, missile launchers, armoured vehicles, artillery pieces and up to 13,000 soldiers are marching for Kim Jong-un in a display of might to the West.
Even so, Pence and other USA officials seemed to be open to the possibility of a meeting, even if they were not actively seeking one.
"We are not meant to use sports festival like the Winter Olympics as a political space".
The 23rd Winter Olympic Games will take place in South Korea's PyeongChang on February 9-25, 2018. "We don't feel any need to do so either".