South Korea's benchmark KOSPI index continued its downward trajectory late Tuesday morning, weighed down by sustained selling from overseas investors.

The decline follows the release of Samsung Electronics Co.'s preliminary second-quarter earnings estimate, which triggered a wave of profit-taking among foreign capital.

The market move underscores a broader period of weakness for the index, which closed 0.46% lower on Monday amid similar risk-off sentiment.

Foreign investors have been a consistent source of selling pressure, driving the index lower as they adjust positions following the tech giant's financial update.

Samsung's earnings report served as a catalyst for the latest session losses, with traders interpreting the results as a signal to reduce exposure.

The heavy foreign selling highlights ongoing sensitivity to corporate guidance and profit-taking dynamics in the Korean market.