The UN spokesman said Guterres did not meet with Kim's sister.
A pair of impersonators dressed as United States President Donald Trump and North Korea leader Kim Jong-un were "shown out by security staff" after arriving at PyeongChang Olympic Stadium, according to a Reuters report.
The sister of the North Korean leader on Friday became the first member of her family to visit South Korea since the 1950-53 Korean War.
Pence, the leader of the USA delegation, was among 12 leaders invited to an in-stadium reception by South Korean President Moon Jae-in.
"We're getting along great", the Kim Jong-un lookalike told Reuters.More news: Conte: It's been a 'disaster' convincing Chelsea board to sign players
For its part, Japan has made clear that it favors the swift resumption of joint US-South Korean military exercises, which had been put off until after the Olympics in an effort to smooth the path for North Korea's participation at PyeongChang.
While it would be a diplomatic coup for Moon, who was elected on a promise to pursue warmer relations with the North, it could strain relations with the United States, which has appeared uncomfortable at the warm welcome afforded to the North Korean delegation over the past few days. "North Korea bombing, please".
It cemented what has been a rapid improvement in Korean ties since North Korea - after months of fierce nuclear rhetoric and missile tests - agreed last month to attend their first Olympics in the South.
The White House official says Pence stood only for the USA team, despite other people in the box standing and applauding when athletes from the two Koreas walked in together.
UN Secretary-General Antonio Guterres urged North Korea's ceremonial head of state Kim Yong Nam to engage in dialogue on ending the nuclear crisis during a brief exchange in South Korea, a UN spokesman said Friday.More news: Zeid urges worldwide action as violence soars in Syria
To pave the way for the North's participation at Pyeongchang, South Korea had delayed the annual exercises with US forces, which usually take place between February and March, until after the Olympics. "Her being here is not that bad, but I feel North Korea has shown up to the Olympics without paying", Yoon told CNN during Saturday's hockey match between Switzerland and the unified Korean team. The North also faces ever-tightening worldwide sanctions after it conducted a fresh nuclear test past year and a series of missile tests.
What did seem clear was that, deliberately or not, the North Korean government had managed to edge its way onto center stage during the South's biggest global moment in years.
"Now is not the time to postpone U.S".
One notable visual came with the appearance of the Russian delegation, which marched in unable to carry its flag because of doping-related sanctions by the International Olympic Committee.More news: Five Year Old Who Passed Away Named As Kayden Fleck
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