Yoon Suk Yeol has become South Korea's first sitting president to be arrested after investigators scaled barricades and cut through barbed wire to take him into custody.
Yoon, 64, is being investigated on charges of insurrection for a failed martial law order on 3 December that plunged the country into turmoil.
He has also been impeached by parliament and suspended from office - but will not be removed from his position until the Constitutional Court rules on his impeachment.
Yoon's dramatic arrest on Wednesday, however, brings to an end a weeks-long standoff between investigators and his presidential security team.
