Security officials told the BBC that several gunmen stormed the heavily-guarded Mehran naval air base late in the evening in central Karachi.

安全力量告诉BBC，几名持枪分子深夜袭击了卡拉奇中部守卫森严的迈赫兰海军航空基地。

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The trial, held behind closed doors in a makeshift courtroom at Karachi Central Jail, is taking place amid massive security.

BBC: New evidence in Pearl case hearings

With national elections due on May 11, the ANP part of the departing central government coalition faces potential extinction in Karachi.

WSJ: Taliban Thrive in Pakistani Commercial Hub

Last autumn, he had imposed direct rule by the central government, primarily to bring order to violence-prone Karachi, the country's commercial centre.

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