President Moon Jung-in, Special Adviser for Unification and Foreign Affairs and Security, said Chairman Kim Jong-un "is staying in Wonsan since April 13th and is healthy."

Moon added in an interview with Fox News in the United States and added that "no suspicious movements have been detected yet" in North Korea.

Meanwhile, a US Defense Department official said in an interview with Newsweek that rumors about Kim's personality were "just a guess."

The official said, "There is no additional information about Kim's health, and I have never seen such a sign."