North Korea is expanding a weapons plant that manufactures missiles used by Russia against Ukraine, according to new research from a US-based think tank.

North Korean leader Kim Jong-un has visited the facility several times and the state media has previously talked about the tactile missiles being mass-produced at the location.

Researchers at SI Analytics, a South Korean satellite imagery firm that uses AI technology to scour images, also confirmed the new construction at the February 11 plant, saying in a report on Monday that some of the construction near the loading area would likely be used to conceal the future operations of the factory from satellites.

Ukraine has been hit by a surge in Russian ballistic missile attacks, about a third of which used North Korean weapons that can only fly because they run on Western circuitry, obtained despite sanctions,

Around 10,900 North Korean troops have been deployed to Kursk as part of Russia's airborne unit and marines, with some already participating in battles in the Ukraine war, a South Korean lawmaker said on Wednesday,

Pyongyang's support has become crucial between the two countries, as Kim Jong Un assists Moscow in replenishing its stockpiles of weapons.​

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