Islamabad: A US drone strike on Monday killed at least four people in Pakistan's North Waziristan tribal region, security officials said.
    
The spy aircraft fired two missiles on a house at Mir Ali area, they said, adding several others were also injured in the strike.
    
It was the second US strike in the region in three days.
    
On Saturday, a drone had killed at least three people in the region.

(Agencies)

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