Pakistan, July 28 -- Pakistan Stock Exchange closed lower on Tuesday, with the benchmark KSE-100 Index ending in negative territory. The decline reflected weaker investor sentiment during the second trading session of the week.

The KSE-100 Index fell 638 points to close at 177,623. Meanwhile, selling pressure weighed on the market throughout the trading session.

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During the session, the benchmark index reached an intraday high of 179,123 points. However, it later dropped to an intraday low of 177,434 before recovering slightly by the close.

Trading activity remained strong despite the market's decline. According to official figures, investors traded 950 million share...