South Korea’s Joint Chiefs of Staff also assessed in a report Friday that North Korea is continuing its preparations to test-fire an intercontinental ballistic missile.

South Korea's military said Friday it believes North Korea is planning to send additional troops to Russia after its soldiers fighting in Ukraine suffered heavy casualties. South Korea's Joint Chiefs of Staff also said in a report distributed to journalists that North Korea is continuing its preparations to test-fire an intercontinental ballistic missile intended to reach the United States.

Lt. Gen. Kyrylo Budanov said North Korea has already provided Russia with 120 self-propelled artillery guns and 120 multiple-launch rocket systems, with more to come.

Britain's defense ministry said about 1,000 North Korean soldiers have been killed and around 3,000 more wounded fighting against Ukraine.