Local administrator Mohammad Younus of Baluchistan's Panjgur district said gunmen killed six people from the same family in an isolated house.
The victims include a father, his two sons and two female relatives, said Younus, adding that the motive for the killings was still under investigation.
Baluchistan is the scene of an ongoing low-intensity insurgency by Baluch separatist groups, and Islamic militants also operate in the area.
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