South Korean officials told CNN on Sunday that North Korean leader Kim Jong Un is alive and well. After the operation of the heart, reports of Kim Jong Un dying or seriously ill are going on in the media all over the world. There were also reports that Kim Joong Un's sister Kim Joy Young could take over the country as his successor.

Moon Chang-in, the top foreign policy advisor to South Korea's President Moon Jae-in, said that our government's position is firm, Kim Jong Un is alive and healthy. According to Moon, Kim has been in the Wonsan region of North Korea since April 13 and we have not yet found any suspicious activities.

Washington Post said on Sunday that Kim's train had been spotted in Wonsan through satellite images. North Korea's official newspaper Rodong Sinmun also submitted a report on Sunday that Kim thanked the workers who had remodeled the city of Samjeon, but CNN said it does not confirm the report.

Kim Jong Un's sister Kim Joey Young is trying to gain more power as an alternate member in the Politburo of North Korea, and perhaps her efforts may succeed in the event of Kim's death.