North Korea has warned the United States of "unimaginable consequences" from its "hostile" policy towards the nuclear armed state, urging Washington to accept its long-standing demand for a peace treaty.
The Democratic People's Republic of Korea (DPRK) said Tuesday that country's scientists in atomic energy are "steadily improving the levels of nuclear weapons with various missions in quality and quantity" and they have made innovations day by day in their research and production.
Kim Jong Un, top leader of the DPRK has vowed to crush the U.S. hostile policy toward Pyongyang amid tensions on the Korean Peninsula, the official news agency KCNA reported on Wednesday.
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