Smoke rising from the Mehran naval base
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Pakistani troops end militant siege of naval base

Questions are mounting over the security of Pakistan's nuclear arsenal after commandos re-gained control of a major naval base in the port city of Karachi.

The Mehran naval base was attacked and held for at least 15 hours by six heavily-armed Taliban gunmen to avenge the killing of Osama bin Laden.

Orla Guerin reports.

  • 23 May 2011