The benchmark Korea Composite Stock Price Index lost seven-point-two points, or zero-point-19 percent, on Monday to close at three-thousand-846-point-06.

The tech-heavy KOSDAQ fell seven-point-51 points, or zero-point-87 percent, to close at 856-point-44.

The South Korean won weakened against the U.S. dollar by one-point-five won, trading at one-thousand-477-point-one won as of 3:30 p.m.