Neither Moscow nor Pyongyang have confirmed the deployment.
Lazarus Group gained notoriety a decade ago when it was accused of hacking into Sony Pictures as revenge for "The Interview," a film that mocked North Korean leader Kim Jong Un.
The agreement formalises months of tightening military bonds between two nations that were Communist allies throughout the Cold War.
BTS member J-Hope more recently marked a significant milestone as the second BTS member to fulfil his mandatory military service, bringing fans of the renowned seven-member South Korean boy band a step nearer to the group’s anticipated reunion.
Talent, discipline and a desire to please leader Kim Jong Un have helped propel North Korea's youth footballers to two Women's World Cup crowns in a matter of weeks, experts say.
They beat Spain on penalties Sunday in the Dominican Republic to clinch a record third Women's World Cup at under-17 level, adding it to their title in the under-20 version in September.
The missile was launched on a sharply lofted trajectory from an area near the North's capital and splashed down about 300 km (190 miles) west of Japan's Hokkaido, recording the North's longest ever ICBM flight time.
The roads and railways have long been shuttered, but destroying them sends a clear message that Kim is not prepared to negotiate with the South, experts said.
China and North Korea are traditional socialist allies, and Beijing has long provided crucial support for Pyongyang's diplomatically isolated government.
Donald Trump and his secretary of state sent out mixed messages on North Korea yesterday, with the US President praising Kim Jong Un but Mike Pompeo saying Pyongyang still had "enormous" work to do.
North Korea has not stopped its nuclear and missile programs and is violating UN sanctions including by “a massive increase in illicit ship-to-ship transfers of petroleum products,” UN experts say in a new report.
US Secretary of State Mike Pompeo says the process of ending North Korea’s nuclear program would take time but he was optimistic that it would be done within a timeline set by the leaders of the two countries.
No sitting US president has ever met a North Korean leader before. The historic meeting on June 12 between US Donald Trump and North Korean Supreme leader Kim Jong Un ended with historic results. The meeting generated so much goodwill that the US President expressed his desire to visit North Korea and to invite the North Korean leader to Washington.
Donald Trump accepted an invitation from Kim Jong Un to visit North Korea during their historic summit, Pyongyang state media reports, as the US president says the world had jumped back from the brink of "nuclear catastrophe".
North Korean leader Kim Jong Un and Donald Trump arrive in Singapore for an unprecedented summit, with Pyongyang's nuclear arsenal at the top of the agenda and the US president calling it a "one-time shot" at peace.
South Korea is monitoring developments in the North's armed forces, it says after reports Pyongyang replaced three of its top military officials ahead of a summit with the United States.
North Korea dismantles its nuclear test site, media invited to attend the ceremony says, in a planned move portrayed by the isolated regime as a goodwill gesture ahead of a potential summit next month with the US.
North Korea has called US Vice-President Mike Pence "ignorant and stupid" for his warnings over a planned summit with Donald Trump, renewing a threat to cancel as the US president said the fate of the historic talks will be decided next week.
North Korea has accepted a list of South Korean reporters to visit their nuclear testing site after a days-long tug of war with Seoul, South Korea’s unification ministry says.
