South Korean stocks fell sharply Thursday, following the lead of markets in the U.S. Overnight, tech stocks crashed in New York, with the Dow Jones Industrial Average slumping two-point-41 percent and the Nasdaq Composite tumbling four-point-43 percent.

The benchmark Korea Composite Stock Price Index(KOSPI) plummeted 34-point-28 points, or one-point-63 percent, to close the day at two-thousand-63-point-30. It marks the third consecutive day the main bourse has ended lower and is the lowest close in 21 months. 

The tech-heavy KOSDAQ fell 12-point-46 points, or one-point-78 percent. It closed the day at 686-point-84. 

On the foreign exchange, the local currency weakened five-point-seven won against the dollar, ending the session at one-thousand-138 won.