South Korea's Presidential Security Service chief resigned Friday and acting President Choi Sang-mok accepted it. President Yoon Suk Yeol remains in his fortified residence as law enforcement seeks to arrest him.

South Korea’s President Yoon Suk Yeol faces a new and potentially more robust attempt to arrest him for insurrection after a top investigator vowed to do whatever it takes to break a security blockade and take in the impeached leader.

Impeached South Korean President Yoon Suk Yeol, in a letter to conservative supporters rallying outside his Seoul residence, vowed to “fight to the end” against “anti-state forces,” while his legal te