North Korea is preparing to send Russia more than 100 artillery systems – originally designed to flatten Seoul – to be used in its war against Ukraine.

South Korea's military said on Friday that it suspects North Korea is preparing to send more troops to Russia to fight Ukrainian forces, even after suffering losses and seeing some of its soldiers captured.

North Korea is poised to send more than 100 of its fearsome M1989 Koksan howitzers to Vladimir Putin's troops in Ukraine, a top general has claimed.