Trump Takes Aim At N Korea's 'Rocket Man' On Twitter

US President Donald Trump has referred to North Korea's leader Kim Jong-un as "Rocket Man" - and pictured himself taking out his former election rival Hillary Clinton with a golf ball.

Trump spoke on Saturday night with South Korea's President Moon Jae-in, pledging joint "steps to strengthen deterrence and defence capabilities and to maximise economic and diplomatic pressure on North Korea", according to the White House.