North Korean troops have entered combat with Ukrainian forces, President Volodymyr Zelensky said, calling the engagement a "new page of instability in the world."

The Pentagon declined to comment about the "extracurriculars" of the roughly 10,000 North Korean troops deployed to Russia.

North Korean soldiers have clashed with Ukrainian troops for the first time, Ukraine's top officials have revealed. In an interview with South Korean broadcaster KBS, Ukrainian Defence Minister Rustem Umerov said a "small group" of North Korean soldiers were attacked.