Finance Minister Choi Sang-mok became on Friday South Korea's second acting president in two weeks, as lawmakers voted to impeach the current acting leader, Prime Minister Han Duck-soo, fuelling political uncertainty in Asia's fourth-largest economy.

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.

South Korea’s parliament is set to vote Friday on impeaching Acting President Han Duck-soo, potentially deepening a political crisis that has rattled financial markets and disrupted diplomacy efforts.