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.

The United States has information that North Korea is preparing additional supplies of ballistic missiles to Russia, as well as long-range self-propelled artillery and multiple launch rocket systems (MLRS).

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.