https://cdnph.upi.com/ph/st/th/7541776816681/2026/upi_com/c65c638fcefe364f0822e0fa88dd70a8/v1.5/China-blocks-South-Korean-spy-chief-visit-amid-Taiwan-tensions.jpg" /> China denied entry to S. Korea's intelligence chief and signaled reluctance to improve relations, amid growing tensions over Seoul's stance on Taiwan.