The South Korean won experienced a significant overnight drop in value against the US dollar, rising by more than 10 won during after-hours trading. The exchange rate closed at 1,540.00 won per dollar. This marks a 15-month low for the Korean currency. The surge occurred during trading in New York, according to Yonhap News Agency. The reasons for the sudden depreciation were not immediately detailed in the report. This movement follows previous fluctuations in the exchange rate and signals increased pressure on the won. Further analysis will be needed to determine the long-term impact of this shift on the South Korean economy.