Kim Jong-un says North Korea is ready to mobilise its nuclear war deterrent.
Leader Kim Jong-un added that the country was fully ready for any military confrontation with the US.
The US warned last month that Pyongyang could conduct such a test at any time.
The US special representative to North Korea Sung Kim says North Korea has tested an unprecedented number of missiles this year - 31 compared to 25 during the whole of its last record-breaking year, 2019.