North Korean leader Kim Jong Un said he would "unconditionally support" Russia's war against Ukraine, state-run media reported Thursday, in the latest sign of growing military ties between the two countries.

North Korea has become one of Moscow's main allies during its more than three-year Ukraine offensive, sending thousands of troops and container-loads of weapons to help the Kremlin oust Ukrainian forces from Russia's Kursk border region.

SEOUL--North Korean leader Kim Jong Un told a visiting top Russian official that his country will “unconditionally support” Russia’s war against Ukraine, the North’s state media reported Thursday, the latest sign of expanding cooperation between the two nations.