North Korea recently sent some 3,500 additional soldiers to Russia's Far East for field training, a South Korean lawmaker said Wednesday, with the possibility of soon being dispatched to the front lines.

The fresh deployment comes after North Korea suffered heavy casualties on the front lines in Russia’s war against Ukraine, the South’s spy agency says.

Ukrainian President Volodymyr Zelenskyy has said that Russia carried out more than 2,100 aerial bomb attacks on Ukraine in the past week. In a post on his X account on Sunday, Zelenskyy also reported that Russian forces deployed nearly 870 attack drones and over 80 missiles of various types against Ukraine.