South Korea’s Constitutional Court struck down the impeachment of the country’s prime minister Han Duck-soo and restored his powers on Monday, the latest twist in a political saga that started when the President declared martial law last year.

Han, South Korea’s No 2 official, became acting leader after President Yoon Suk Yeol was impeached by the opposition-controlled National Assembly over his December 3 imposition of martial law that triggered a massive political crisis.

South Koreas Constitutional Court made a landmark decision on Monday, reinstating impeached Prime Minister Han Duck-soo as acting president.