Kim Ki Nam died on Tuesday due to old age and "multiple organ dysfunction", having been treated at a hospital since 2022, the country's official Korean Central News Agency said. He was 94.
Kim Jong Un visited the funeral hall early Wednesday morning, paid silent tribute and looked around the bier with "bitter grief over the loss of a veteran revolutionary who had remained boundlessly loyal" to the regime, KCNA said.
A wreath in the name of Kim Jong Un was "laid before the bier of the deceased", KCNA said.
Kim Ki Nam is best known for having led North Korea's key department for propaganda. In the 1970s, he was in charge of Pyongyang's official mouthpiece, the Rodong Sinmun newspaper, according to the North.
He is credited with masterminding the cult of the Kim family dynasty, and Pyongyang's state media on Wednesday described him as "a veteran of our Party and the revolution, a prestigious theoretician and a prominent political activist".
Kim Ki Nam's role as the regime's chief propagandist was eventually passed on to Kim Jong Un's powerful sister, Kim Yo Jong, in the late 2010s.
Her arrival at the propaganda department as its high-ranking figure took place in 2018, according to Seoul's unification ministry.
Kim Ki Nam in 2005 led a North Korean delegation to visit South Korea's National Cemetery, honouring soldiers who died during the Korean War, when inter-Korean relations were in a better state.
In 2009, the late official led a North Korean delegation to South Korea to attend the funeral of Seoul's former dovish president, Kim Dae-jung. During the visit, they laid a wreath signed by Pyongyang's then-leader Kim Jong Il.
Kim Dae-jung in 2000 made a historic visit to Pyongyang, where he met with Kim Jong Il, the predecessor and father of current leader Kim Jong Un.
During his visit to Seoul in 2009, Kim Ki Nam met with Seoul's then-president Lee Myung-bak.
Inter-Korean relations are at one of their lowest points in years recently, with Pyongyang declaring South Korea its "principal enemy".
Regrettably, Pyongyang has made no mention of Kim Ki Nam's efforts for inter-Korean cooperation following his death, Yang Moo-jin, president of the University of North Korean Studies in Seoul, told AFP.
"It seems to show the current state of inter-Korean relations characterised by confrontation and conflict," he said.
