South Korea’s KOSPI index crashed nearly 10% on Tuesday, triggering circuit breakers as a massive sell-off engulfed the technology sector.
The benchmark extended its decline from record highs, marking one of the sharpest single-day drops in the market's history.
The rout in Seoul was accompanied by significant losses in Tokyo, where the Nikkei fell more than 3%.
The turmoil in Seoul was part of a broader reversal across Asian equity markets, which staged a sharp retreat from recent peaks following weakness on Wall Street.
The technology sector bore the brunt of the selling pressure, with major chipmakers and hardware exporters leading the decline.
The rout in Seoul was accompanied by significant losses in Tokyo, where the Nikkei fell more than 3%.
The synchronized drop highlights the vulnerability of Asian growth markets to shifts in global risk sentiment and US equity performance.