Trump throws Twitter tantrum over Russia relations and Kim Jong-un calling him 'old'

President Donald Trump on Saturday lashed out at North Korean dictator Kim Jong-un after state-run media called him a "lunatic old man."

North Korea also criticized Trump as a "warmonger" as the president toured Asia to drum up support against Pyongyang's nuclear weapons program.

Trump also lashed out at the "haters and fools" who had criticized his meeting with Russian president Vladimir Putin. The two spoke together during the annual Asia-Pacific Economic Cooperation Economic Leaders’ Meeting in Vietnam.

Trump faced a backlash after saying he believed Putin, who told him that Russia did not meddle in the 2016 U.S. presidential election.

Read Trump's tweets below: