1. 

   In Karachi, four heavily armed militants attacked the busy Pakistan Stock Exchange on Monday morning, killing four security guards and a police officer before being shot dead in an exchange of fire, media reports said. The unidentified militants opened indiscriminate fire and lobbed hand grenades at the main gate of the multi-storey building as they tried to storm it, media reported. The police and Rangers' officials arrived at the scene and killed all the four terrorists near the entrance gates, Sindh Rangers said. (Reuters Photo)

2. 

   The Pakistan Stock Exchange building and surrounding areas have been sealed and people were evacuated from the back door. (Reuters Photo)

3. 

   AK-47 rifles, hand grenades, magazines and other explosive material have been recovered, the police said, adding that the equipment indicated that they had come for a long siege.(Reuters Photo)

4. 

   Four security guards and a police sub-inspector were killed as they foiled their attempt to storm the Pakistan Stock Exchange (PSX) compound on Karachi's I.I. Chundrigar Road, also known as Pakistan's Wall Street, the report said. (Reuters Photo)

5. 

   According to the officer, the attackers were reportedly wearing clothes usually worn by police officials while they are off-duty. (Reuters Photo)

6. 

   Police said that the militants conducted the assault with sophisticated weapons and were carrying a bag of explosives. (Reuters Photo)