ISLAMABAD, Aug. 2 (Xinhua) -- A mortar shell blast killed five children and injured 13 others in Pakistan's northwest Khyber Pakhtunkhwa province on Saturday morning, police sources said.

The incident happened at about 9:30 a.m. local time (0430 GMT) in Lakki Marwat district of the province when a group of children, while playing in the nearby mountainous area, found an unexploded ...

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