Kim Yo-jong, second from left, is seen at North Korea's propaganda group gymnastics and artist performance, "The Land of the People," at May Day Stadium in Pyongyang, Tuesday. North Korean leader Kim Jong-un is also seen fourth from left. Yonhap

North Korean leader Kim Jong-un's powerful younger sister has appeared in public for the first time in 53 days, contradicting rumors that she was disciplined in the wake of the leader's embarrassing no-deal summit with U.S. President Donald Trump.

Kim Yo-jong attended North Korea's propaganda group gymnastics and artist performance called "The Land of the People" held in Pyongyang's May Day Stadium on Monday, along with leader Kim, according to the Korean Central News Agency (KCNA).

It marked the first time that Kim Yo-jong has appeared in public since she was last seen in North Korean media during the Supreme People's Assembly in April. Until then, she played the role of a personal secretary for the leader, and was seen holding an ashtray when he was having a cigarette break at a Chinese train station on his way to Vietnam for the summit with Trump.

The report came after rumors of a purge spiked following a news report that leader Kim had carried out a massive punishment of officials responsible for the breakdown of the Trump summit and that Kim Yo-jong was disciplined.