At least one person was killed and over a dozen injured in a blast targeting a mosque during Friday prayers in Pakistan's southwestern Balochistan province, police said.

The explosion targeted the Rehmania Mosque in Pashtunabad area of the provincial capital Quetta, it said, adding that the injured have been shifted to different hospitals for treatment.

The death toll could rise as it was a big explosion, said a security official.

According to the police, the nature of the bombing was not known but it looked as if a planted device was detonated.

Balochistan has witnessed several attacks of this kind in recent months.

At least 20 people were killed and 48 others injured last month in a blast at a fruit and vegetable market in Quetta's Hazarganji area.

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