The benchmark Korea Composite Stock Price Index lost 117-point-32 points, or two-point-85 percent, on Wednesday to close at four-thousand-four-point-42.

The tech-heavy KOSDAQ fell 24-point-68 points, or two-point-66 percent, to close at 901-point-89.

The South Korean won weakened against the U.S. dollar by eleven-point-five won to trade at one-thousand-449-point-four won as of 3:30 p.m.