A North Korean art troupe put on a concert in Seoul on Sunday to celebrate the ongoing Pyeongchang Winter Olympics, with President Moon Jae In and the North's high-ranking delegation, including its leader Kim Jong Un's sister, in attendance.
Chang Je-won, a spokesman for Liberty Korea Party, said: We should firmly keep in mind any talks, where denuclearisation is not a precondition, only buy North Korea more time to complete its nuclear capabilities while they fool us with their peace offensive facade.
The delegation includes the North Korean ceremonial head of state Kim Yong Nam, who has attended different global games before, and Kim Yo-jong, Kim Jong-un's younger sister.
Japanese Prime Minister Shinzo Abe has warned South Korean President -in not to fall for 's "smile diplomacy" during, saying the North remains committed to developing nuclear weapons and missiles even while pursuing talks with the South.
This photo, taken on February 10, 2018, shows President Moon Jae-in (R) receiving North Korean leader Kim Jong-un's letter from Kim Yo-jong, the younger sister of the North's ruler, at Cheong Wa Dae.
North Korea has sent a delegation of 22 athletes to compete in five disciplines, with their women's ice hockey players to compete in a unified Korean team.
A visit by Moon to the North would enable the first summit between leaders from the two Koreas since 2007, and would mark only the third inter-Korean summit to take place.
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It replaced the National Defense Commission, the most powerful office under his late father Kim Jong-il. US President Donald Trump and the North Korean leadership traded insults as tensions rose.
"We've said for some time it's really up to the North Koreans to decide when they're ready to engage with us in a honest way, a meaningful way", Tillerson told reporters in Egypt.
Other members of the North Korean delegation present at Saturday's meeting included Ri Son Gwon, who led the first sit-down talks at the Demilitarized Zone (DMZ) earlier this year, and Choe Hwi.
The North is under a set of multilayered worldwide sanctions due to its provocations, with U.S. President Donald Trump showing no signs of letting up on a "maximum pressure' campaign to press the North to give up its nuclear arsenal. But if you want to talk, we'll talk".
In Washington, China's top diplomat Yang Jiechi told Trump that China hoped it and the United States could increase their coordination on the North Korea issue.
Kim Yo Jong, the younger sister of DPRK leader Kim Jong Un, and his special envoy, was in town for numerous cultural events at the beginning of the PyeongChang Winter Olympics.
A senior US official said Pence and Moon, while watching speed skating together on Saturday night, discussed intensifying sanctions. But North Korea's record on human rights and the growing threat from its nuclear weapons program appeared out of mind.
US Vice President Mike Pence said in an interview published Sunday that Washington has agreed on terms for future talks with North Korea.