Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong-un gives an on-site inspection to the Korean April 26 Cartoon Film Studio together with his sister Kim Yo-yong (C). [Photo/IC]

PYONGYANG - Kim Yo-yong, the youngest sister of the top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong-un, was revealed by state media as holding the post of vice-department director of the ruling Workers' Party of Korea (WPK).

Kim Jong-un has recently given an on-site inspection to the Korean April 26 Cartoon Film Studio which was founded on the instruction of late leader Kim Il-sung in September 1957, the official KCNA news agency said Thursday.

The report mentioned that he was accompanied by several high-ranking officials, including Kim Yo-jong, vice-department director of the WPK Central Committee.

She has accompanied her brother in field guidance activities before, but it is the first time that the DPRK's official media made public her position in the leadership.

Other officials joining the inspection included Kim Ki Nam, party secretary and director of the Propaganda and Agitation Department, and Ri Jae Il, first vice director of the Propaganda and Agitation Department.

Kim Yo-jong, the youngest in the family and said to be born in 1987, used to study at the prestigious Kim Il-sung University and tutored in English and French, according to South Korean media.