North Korea: Kim Jong-un vows to build ‘invincible military’

North Korea’s leader has vowed to build an “invincible military” in the face of hostile policies from the United States, according to state media.

Kim Jong-un added that weapons development was for self-defence, and not to start a war.

Mr Kim made the comments at a rare defence exhibition while flanked by a variety of large missiles.

North Korea has recently tested what it claims to be new hypersonic and anti-aircraft missiles.

The South meanwhile has tested its own submarine-launched weapon.