[Market Close] Hormuz Mine Fears Send KOSPI Down 1.7% on Institutional, Foreign Selling

South Korea's KOSPI index plunged 1.72% to 5,487.24 on concerns over Iran laying mines in the Strait of Hormuz, a critical crude oil shipping route, as foreign investors and institutions led heavy selling while President Trump intensified warnings against Iran and markets await next week's Federal Reserve rate decision.