Law enforcement authorities have requested a warrant to formally arrest impeached South Korean President Yoon Suk Yeol, who is spending his third day at a detention center after his lawyers failed in a last-minute attempt to secure his release.

South Korean investigators probing President Yoon Suk Yeol for alleged insurrection asked a Seoul court on Friday to extend his detention as the embattled leader again refused to be questioned.

Yoon’s detention, after a tense standoff outside the presidential residence, marks the latest chapter in a bewildering series of events since his martial law decree.