North Korea has conducted another "crucial test" at its long-range rocket launch site that it had once promised the US it will shut down.
Making the announcement on Saturday, North Korean state media (KCNA) claimed that the move will bolster its "reliable strategic nuclear deterrent".
The report called it a "successful test of great significance" but did not specify what was tested.
Pyongyang's move comes just a day after the US tested a medium-range ballistic missile over the Pacific Ocean.


Trump appoints envoy to Greenland, stirs backlash
Passenger bus crash in Indonesia kills at least 16 people
Japan prepares to restart world's biggest nuclear plant
Remaining 130 abducted Nigerian students have been released, official says
Failed homemade bombs thrown before Bondi shooting, police tell court
Malaysia court denies ex-PM Najib's bid to serve jail sentence at home
Australian PM booed as Bondi Beach attack victims honoured
Kremlin: Revised US proposals don't improve peace outlook
