South Korea's benchmark KOSPI plunged below two-thousand-370 on Monday, amid concerns over a prolonged impasse due to the opposition's push to impeach President Yoon Suk Yeol following his declaration of martial law.

The main bourse closed at two-thousand-360-point-58, down 67-point-58 points, or two-point-78 percent from the previous trading day.

The KOSPI dropped to as low as two-thousand-360-point-18 at one point during the day, which is the lowest since November 3, 2023.

Foreign investors and agencies bought shares worth 103-point-two billion won and 691-point-nine billion won, or around 72 million and 483 million U.S. dollars, respectively, while individuals sold 889-point-seven billion won worth of shares.
 
The tech-heavy KOSDAQ dropped 34-point-32 points, or five-point-19 percent to close at a 52-week low of 627-point-01.

The Korean won strengthened 17-point-eight won against the U.S. dollars to one-thousand-437 won as of 3:30 p.m.