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.

Kyiv said it found foreign-made parts inside North Korea's KN-23 and KN-24 short-range ballistic missiles.

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

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,

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.

Russia's Deputy Foreign Minister Andrey Rudenko issued a warning to South Korea against supplying lethal aid to Ukraine, saying that the move would "fully destroy relations" between the two countries.

North Korea is expanding a weapons manufacturing complex that assembles a variety of short-range missiles allegedly used by Russia against Ukraine, satellite images showed.

Ukrainian Defense Intelligence intercepts North Korean troop communications in Russia, revealing their involvement in the Ukraine war.