Ukrainian President Volodymyr Zelenskiy said on Monday that more than 3,000 North Korean soldiers have been killed and wounded in Russia's Kursk region and warned that Pyongyang could send more personnel and equipment for Moscow's army.

"Through various sources of information and intelligence, we assess that North Korean troops who have recently engaged in combat with Ukrainian forces have suffered around 1,100 casualties," the JCS said in a statement.

North Korea has supplied Russia with thousands of troops to fight against Ukraine, intelligence officials said, but old footage that has resurfaced on social media does not show the funeral of a general deployed by Pyongyang to lead its troops in the ongoing invasion.

The South's Joint Chiefs of Staff (JCS) on Monday said at least 100 North Korean soldiers have died while another 1,000 suffered injuries in the bordering Kursk region, where Moscow's forces have been battling a Ukrainian ground incursion since August.

North Korea’s involvement could not only prompt a more direct South Korean involvement but may also accelerate decisions regarding intervention in various European capitals.

South Korea warns of North Korea’s preparations to supply more troops and drones to aid Russia in the Ukraine war.

South Korea has imposed sanctions on 11 individuals and 15 organisations involved in military cooperation between Russia and North Korea, the financing of North Korea's nuclear and missile programmes and Pyongyang's illegal procurement of sanctioned goods.

In Trump-led armistice talks, the Hermit Kingdom may want a seat at the table.

Ukrainian President Volodymyr Zelenskyy said on Monday that more than 3,000 North Korean soldiers have been killed or wounded in Russia's Kursk region and warned that Pyongyang could send more personnel and equipment for Moscow's army.

North Korea has already provided 240-millimeter multiple rocket launchers and 170mm self-propelled howitzers, and was seen preparing to produce more suicide drones to be shipped to Russia after leader Kim Jong Un guided a test last month, according to Seoul's Joint Chiefs of Staff (JCS).

Ukrainian President Volodymyr Zelensky confirmed Monday more than 3,000 troops from North Korea have been killed so far fighting next to Russian forces.