Impeached South Korean President Yoon Suk Yeol on Friday fended off an arrest attempt Friday after a hourslong standoff between investigators with the country’s anti-corruption agency and presidential security. Investigators left the president's official residence after the presidential security service blocked them from entering for nearly six hours due to concerns about their safety. The agency expressed "serious regret about the attitude of the suspect, who did not respond to a process by law."Yoon, who was impeached last month over his short-lived martial law declaration, has defied investigators' attempts to question him for weeks. He has not left the residence since Dec.