Four heavily armed militants, believed to be from a banned Baloch terror group, on Monday made a brazen attempt to take over the Pakistan Stock Exchange building here, killing four security guards and a police officer before being shot dead by security forces. The militants, who arrived in a car, opened indiscriminate fire and lobbed grenades at the main gate of the multi-storey building situated in the city's high-security commercial hub as they tried to storm it. Four security guards, a police sub-inspector and two civilians were killed in the heavy exchange of fire at the PSX compound on Karachi's I.I. Chundrigar Road, also known as Pakistan's Wall Street, the police said.
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