A deepening political crisis in South Korea has not diminished the military readiness of 28,500 troops stationed in the Asian state, a U.S. official said on Friday, but Washington is closely monitoring the situation.

South Korea's acting President Han Duck-soo has been impeached by the opposition party controlling the National Assembly. This comes weeks after President Yoon Suk Yeol's imposed martial law, leading to his own impeachment.

The North Korean losses amount to almost 10 percent of the country’s deployment to Russia, the Biden administration said.

A North Korean soldier who was captured while fighting in Russia's war against Ukraine has died of his wounds, South Korea's spy agency said on Friday. "It has been confirmed through an allied intelligence agency that the North Korean soldier captured alive on December 26th has just passed away due to worsening wounds,