The plane crash is the first major test for South Korea’s acting president, Choi Sang-mok, who had been appointed the interim leader only on Friday, as the country grapples with a political crisis at the highest levels.

South Korea's opposition-controlled National Assembly voted to impeach acting President Han Duck-soo, further deepening the country's political crisis.

SEOUL—South Korea’s legislature voted to impeach acting President Han Duck-soo on Friday after he declined to make judicial appointments needed to advance the impeachment of his predecessor, extending the political upheaval that began with a short-lived martial law declaration earlier this month.

Tens of thousands of South Korean protesters rallied in Seoul on Saturday (December 28), intensifying calls for the immediate resignation of impeached President Yoon Suk Yeol.

Supporters and critics of South Korea's impeached president Yoon Suk Yeol took to the streets Saturday with separate protests, following the impeachment of acting President Han Duck-soo.