Trump claims Kim Jong Un is 'in good health'

President Donald Trump tweeted Thursday morning that North Korean Supreme Leader Kim Jong Un is "in good health."

"Never underestimate him!" Trump added.

Reports of Kim Jong Un's failing health have surfaced in recent months. In the spring, reports over several weeks indicated that the dictator was on his death bed, and his sister, Kim Yo-jong was on the verge of taking control of the Hermit Kingdom.

However, Kim appeared at a public event on May 1, according to state media. That marked his first public appearance in several weeks, according to the BBC.