Lawyers for impeached South Korean President Yoon Suk Yeol are denouncing efforts to detain him over his short-lived imposition of martial law, while the country’s acting leader expressed concern over a possible clash between law enforcement agents and presidential security personnel. The presidential security service has fortified Yoon’s compound with barbed wire and rows of tightly placed vehicles as anti-corruption officials and police prepare another attempt to detain him following a failed effort last week. The anti-corruption office that is leading the investigation has been seeking Yoon’s detention since he repeatedly ignored summons for questioning about whether his brief power grab on Dec. 3 constituted rebellion.