South Korea's opposition-controlled National Assembly voted to impeach acting President Han Duck-soo despite vehement protests by governing party lawmakers, further deepening the country's political crisis.

Han has been the caretaker leader after President Yoon Suk Yeol was impeached by the assembly over his short-lived imposition of martial law earlier this month.

South Korea's parliament impeached acting President Han Duck-soo on Friday over a short-lived martial law, plunging the country deeper into political chaos, as the Constitutional Court said it would swiftly trial suspended President Yoon Suk Yeol.