North Korea says its recent barrage of missile launches were a “simulation” of a nuclear attack on the South.
It comes as intelligence suggests North Korea is preparing to hold its first nuclear weapon test in five years.
In recent weeks, Pyongyang has launched seven sets of missiles in response to US and South Korea drills.
On Monday, state media published extensive reports claiming the missiles were designed to carry nuclear weapons.
They said the military practised loading the missiles with tactical nuclear warheads, which are small short-range weapons aimed for use on the battlefield.
