South Korea’s Constitutional Court has unanimously removed Yoon Suk Yeol as president after he threw the nation into turmoil by declaring martial law and sending troops to parliament in an ill-fated effort to break through legislative gridlock.

South Korea's ousted leader Yoon Suk Yeol argued that his brief martial law declaration late last year was "not a coup d’etat" as he appeared in court on Monday.

The nation’s top court unanimously upheld the impeachment of Yoon Suk Yeol, clearing the way for the election of a new president.