North Korea sent an additional 3,000 troops to aid Russia’s war in Ukraine this year, South Korea said Thursday, as Pyongyang’s support appears to continue even as Moscow moves toward negotiations to end the conflict.

The troop reinforcements were sent between January and February, bringing the total number of North Korean troops deployed to fight alongside the Russians to an estimated 11,000, South Korea’s Joint Chiefs of Staff said in an assessment Thursday.

Around 4,000 of them are…