Kim Jong-un has reinstated his sister Kim Yo-jong to North Korea’s key decision-making body as chief propagandist.

Ms Kim represents the main appointment after the dictator carried out a significant reshuffle of the State Affairs Commission).

A long-time advisor to her brother, the move completes a year-long transformation for Ms Kim since she was reportedly demoted in the aftermath of US president Donald Trump scrapping talks over denuclearisation at Hanoi Summit.

After appearing to absorb the blame, she has completed numerous public rehabilitation exercises, with her promotion confirmed at a meeting presided over by Mr Kim, according to the state-run Korean Central News Agency.

“The restoration is part of Kim Yo-jong’s recent rise within the North’s hierarchy,” Ahn Chan-il, a North Korean defector and researcher in Seoul, said.

Kim Jong-un: Power in pictures Show all 20 1 /20 Kim Jong-un: Power in pictures Kim Jong-un: Power in pictures Kim Jong-un rides a horse during snowfall in Mount Paektu in this image released by North Korea's Korean Central News Agency on 16 October 2019 Reuters Kim Jong-un: Power in pictures Kim Jong-un visits the newly built Pyongyang Orphans' Primary School on 2 February 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects a women's company under Unit 5492 of the Korean People's Army in November 2019 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects the test-fire of intercontinental ballistic missile Hwasong-14 at an undisclosed location in July 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un celebrates the successful test-fire of the intercontinental ballistic missile Hwasong-14 at an undisclosed location in July 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects a potato at the Samjiyon Potato Factory in North Korea in October 2018 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un rides a horse through a forest in this image released by North Korea's Korean Central News Agency on 16 October 2019 EPA Kim Jong-un: Power in pictures Kim Jong-un inspects a block of frozen fish at a processing facility in North Korea in November 2018 Reuters Kim Jong-un: Power in pictures Kim Jong-un celebrates the succeful launch of a strategic submarine-launched ballistic missile in August 2016 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un shakes hands with Donald Trump as they meet for the first time at the Capella Hotel on Sentosa island in Singapore in June 2018 Reuters Kim Jong-un: Power in pictures Kim Jong-un and Donald Trump share a glance as they meet in the Demilitarised Zone in Panmunjon, Korea in June 2019 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects mushrooms at Pyongyang Mushroom Farm AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects a super-large multiple rocket launcher ahead of a test in September 2019 Reuters Kim Jong-un: Power in pictures Kim Jong-un inspects an apple farm in South Hwanghae Province in September 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects an apple farm in South Hwanghae Province in September 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects dental wares at a newly built factory in June 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un visits Farm No 1116 in September 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un visits a motor factory in November 2017 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un rides a horse during snowfall in Mount Paektu in this image released by North Korea's Korean Central News Agency on 16 October 2019 AFP/Getty Kim Jong-un: Power in pictures Kim Jong-un inspects the Command of the Strategic Force of the Korean People's Army at an undisclosed location in August 2017 AFP/Getty

Ms Kim, thought to be in her early 30s, was captured earlier this year on the snow-covered Paektu Mountain where she was filmed riding white horses alongside her brother.

The video of the pair at the sacred location was subsequently labelled by state television as a “great event of weighty importance in the Korean revolution”.

Ms Kim’s title is vice-minister of foreign affairs but she is believed to be chief of public announcements and the move follows her public condemnation of the South Korean government.

She labelled South Korean leaders “gangsters” after protests against the North’s recent live-fire drills.

“As far as I know, the South side is also fond of joint military exercises and it is preoccupied with all the disgusting acts like purchasing ultra-modern military hardware,” she said.

“They mean that they need to get militarily prepared but we should be discouraged from military exercises.

“Such a gangster-like assertion can only be expected from those without a normal way of thinking.”

Mr Kim, chairman of the SAC, replaced five of the decision-making body’s 13 members in total.