South Korea Demands Action Over Leaked Pentagon Documents and U.S. Spying Claims.

South Korea has launched an investigation into the reported leak of classified US documents, which allegedly contained details of a plan to assassinate North Korea's leader, Kim Jong Un. The country's defense ministry said it would work with the US to determine the circumstances surrounding the incident, which was first reported by a South Korean broadcaster. The leak has raised concerns about national security and the potential impact on US-South Korea relations.