North Korea, which has reportedly dispatched ground troops to join Russia's war against Ukraine, has also sent fighter pilots who could fly Russian warplanes, a report said on Monday. A government official in South Korea claimed that North Korea last month dispatched fighter pilots to Vladivostok,

South Korea summoned the Russian ambassador on Monday after it accused the North of sending 1,500 soldiers to fight alongside Moscow’s forces in Ukraine. North Korea has dismissed Seoul’s assertion as “groundless rumours”, but Seoul on Tuesday swatted that aside, promising action.