His sister Yo-jong and other high-ranking officials accompanied him on his visit to the Kumsusan Palace of the Sun in Pyongyang where his father and grandfather's embalmed bodies lie in state.
According to KCNA, Kim "expressed his solemn commitment to dedicating himself to the sacred struggle for the eternal prosperity of the country, the security of the people, and the promotion of their well-being."
Kim junior has visited the mausoleum almost every year since his father, former North Korean leader Kim Jong-il, died of heart failure in December 2011 at the age of 69.
His latest visit came just about two months after he paid tribute in mid-December last year, marking the 13th anniversary of his father's death.
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