Investigators on Friday halted their efforts to detain impeached South Korean President Yoon Suk Yeol, following an impasse that lasted more than five hours as Yoon’s presidential security service barred them from entering his residence to execute their warrant.

Yoon Suk Yeol’s bodyguards thwarted investigators in another tense showdown resulting from his short-lived martial law decree.

The police are investigating whether President Yoon Suk Yeol tried to lead an insurrection when he declared martial law and plunged the country into crisis.

President Yoon Suk Yeol Yoon imposed martial law in the middle of the night earlier this month, plunging South Korea into its worst political crisis in decades.

The impeached president faces an attempt by authorities to arrest him over his short-lived Dec. 3 martial law.

South Korean law enforcement officials have requested a court warrant to detain impeached President Yoon Suk Yeol as they investigate whether his short-lived martial law decree this month amounted to rebellion.

South Korea’s President Yoon Suk Yeol again declined to appear for questioning by investigators over his martial law declaration as the embattled leader seeks to first defend himself at an impeachment trial.