North Korean State MediaNorth Korea's GDP grew 3.1% in 2023, according to central bank estimates.The Bank of Korea cited economic cooperation with Russia as one factor.Both countries have deepened ties amid the war in Ukraine.North Korea's growing trade ties with Russia are paying off, helping end a three-year downturn, according to the South Korean central bank.The bank's annual report, cited by Bloomberg, found that North Korea's 2023 GDP grew 3.1% in real terms.