He says the country should be fully ready to use the weapons at any time.

It is designed to unleash a 'radioactive tsunami' that would destroy enemy naval vessels and ports, state media says.

This could hint at another year of intensive weapons tests and tension.

The days-long gathering of party and government officials caps a year when the isolated country fired an unprecedented number of missiles, including intercontinental ballistic missiles.

North Korean scientists have made a 'wonderful leap forward in the development of the technology of mounting nuclear warheads on ballistic missiles,' Kim Jong Un says.

The country revised its nuclear laws last month, envisaging a wide array of scenarios in which it could use its nukes, with Kim declaring North Korea an 'irreversible' nuclear power.

North Korea has never confirmed how many people caught Covid-19, apparently lacking testing supplies.

The nuclear-armed country has reported its first coronavirus cases, and the Omicron variant-fuelled outbreak has since ballooned – marking the failure of a two-year blockade maintained since the start of the pandemic.

The documents and mementos should have been turned over at the end of Trump's term under the Presidential Records Act.

State media says that North Korea would 'crumble' if such foreign influence is allowed to proliferate.

North Korean escapees say executions were carried out at closely monitored sites with authorities keeping a close eye to ensure no information gets out, according to the Transitional Justice Working Group.

The northern alpine town of Samjiyon is being transformed into a massive economic hub, called a 'socialist utopia' by officials, equipped with new apartments, hotels, a ski resort and commercial, cultural and medical facilities.