North Korean leader Kim Jong-Un congratulated the country's defence scientists at the successful launch of a new ballistic missile.
The state news agency KCNA highlighted that the new submarine-launched ballistic missile (SLBM) will help bolster self-defence and contain external threats.
It added that the SLBM - called Pukguksong-3 - was "fired in vertical mode" in the waters of the eastern city of Wonsan on Wednesday.
The test "had no adverse impact on the security of neighbouring countries," KCNA said but gave no other details about the launch.
It comes ahead of fresh nuclear talks with the United States.
More device blasts reported in Lebanon after pager explosions
India takes big step towards simultaneous national, state elections
Ukrainian drone attack triggers major blast in Russia
Russia calls pager attack 'act of hybrid war' against Lebanon
Worst drought on record lowers Amazon rivers to all-time lows
