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Karachi violence leads to 'shoot on sight' orders

8 July 2011 Last updated at 23:00 BST

Security forces in the Pakistani city of Karachi have been ordered to shoot on sight anyone they believe is involved in violence, after several days of unrest.

More than 80 people have died since Tuesday, in the violence which authorities are blaming on armed rival political gangs.

Shahzeb Jillani reports from Karachi.