Trump tweets threats against N. Korea after UN speech

US President Donald Trump said on Twitter Saturday North Korea's Foreign Minister Ri Yong Ho and leader Kim Jong Un "won't be around much longer" if Ri echoed the thoughts of "Little Rocket Man", an apparent reference to Kim.

Ri told the United Nations General Assembly earlier on Saturday that targeting the US mainland with its rockets was inevitable after "Mr Evil President" Trump called Pyongyang's leader "rocket man".

"Just heard Foreign Minister of North Korea speak at UN. If he echoes thoughts of Little Rocket Man, they won't be around much longer!" Trump tweeted.