The South Korean stock market was rocked by Britain's unprecedented vote to leave the European Union.

The benchmark Korea Composite Stock Price Index(KOSPI) nosedived 61-point-47 points, or three-point-09 percent, to close the week at one-thousand-925-point-24. It marked the biggest drop for the KOSPI since May 18th, 2012.

The secondary KOSDAQ plummeted 32-point-36 points, or four-point-76 percent, to 647-point-16. At one point in trading, a restraining measure called the sidecar had to be implemented on the KOSDAQ.

On the foreign exchange market, the local currency depreciated 29-point-seven won against the U.S. dollar to one-thousand-179-point-nine won.