Rumors of Kim's death happened in late April 2020. Kim had been absent on the Day of the Sun, 15 April, celebrating the country's founding father, Kim Il Sung, though had been last seen four days before at a government meeting. "Daily NK" reported that Kim had gone to a hospital for a heart surgery on 12 April, but according to CNN by 21 April that Kim's state was in "grave danger" from the surgery. South Korea reported in response to these stories that there were "no unusual signs detected" in about Kim's health. "The Guardian" reported that China had sent a team of doctors on 25 April to North Korea to look at Kim's condition.