A satellite image shows a suspected missile assembly building under construction (lower center of photo) at the "February 11 Plant" near Hamhung, North Korea in this handout image obtained by Reuters on November 20, 2024. Planet Labs PBC/Handout via REUTERS

North Korea is advancing its nuclear capabilities, raising security concerns for South Korea amidst discussions of U.S.-North Korea dialogue.

A top South Korean official says Russia has supplied air defense missile systems to North Korea in exchange for Pyongyang sending troops.

The plant in North Korea's second-largest city is the only one known to produce solid-fuel ballistic missiles Ukrainian officials say have been used by Russian forces.

South Korea's spy agency says that North Korea has recently supplied additional artillery systems to Russia to support its war efforts against Ukraine.

North Korea is expanding a key weapons manufacturing complex that assembles a type of short-range missile used by Russia in Ukraine, researchers at a U.S.-based think tank have concluded, based on satellite images.

North Korea is expanding a key weapons production complex that assembles KN-23 short-range ballistic missiles used by Russia against Ukraine, Reuters reported on Nov.25.

North Korea is expanding a key weapons production facility where short-range missiles are assembled that Pyongyang has supplied to Moscow, Reuters reports. The facility, known as the February 11 plant,