South Korea's foreign ministry summoned on Monday the Russian ambassador in Seoul in protest over what it has called the dispatch of North Korean troops to Russia for deployment in Ukraine and pledged a joint international response.

North Korea has said it had found the remnants of a South Korean military drone and that any further "violation" of its territory would result in a "declaration of war." Tensions between the two sides of the peninsula have escalated since May when the North began flying balloons carrying garbage across the border to the South,

North Korea has shipped 1,500 special forces troops to Russia’s far east for training and acclimatizing at local military bases and will likely be deployed for combat in the war in Ukraine, South Korea’s spy agency said on Friday.

North Korea claimed Saturday it had discovered the remains of at least one crashed South Korean military drone in the capital Pyongyang, releasing images of the device that some analysts

North Korea has reportedly deployed a significant number of troops to support Russia in its war against Ukraine, sparking concerns that the isolated nation may gain valuable combat experience in exchange for Russian military equipment and technology to advance its modernization efforts.