So far, the number of North Korean casualties or fatalities is estimated to be around 4,700, including approximately 600 deaths, says parliamentarian Lee Seong-Kweun, who sits on the parliament's intelligence committee, after a briefing by the country's intelligence agency.
Around 2,000 soldiers are reported to have been brought back to North Korea, according to Lee.
North Korea confirmed on Monday, for the first time, that they had sent troops to Russia. The dictatorship's state news agency KCNA announced that Pyongyang's soldiers helped Moscow retake territory under Ukrainian control in the Russian border region of Kursk.
According to information from several of Ukraine's allies as well as South Korea, North Korea has sent more than 10,000 soldiers to the war.
Ukraine has lost almost all the ground its forces had controlled on the Russian side of the border in recent weeks.
