Kim Han-sol, the grandson of former North Korean leader Kim Jong-il, attended his graduation ceremony at an international school in Bosnia on Tuesday, the Serbian daily Novosti reported.
There had been rumors that Han-sol, who is the son of Kim Jong-il's eldest son Kim Jong-nam, has disappeared. He has attended the United World College in Mostar since 2011.
The daily said this was the first time that the teenager has been spotted at an official event at the school.
Bosnian media reported last month quoting school staff and other students that Han-sol had not been spotted around the campus for several days, fueling rumors of his disappearance. The United World College, which opened in September of 2006, has many students from the world's trouble spots.
It is unclear what Han-sol intends to do now that he has graduated.