At least 50 people were killed and over 100 injured when a bomb went off in a mosque in northwest Pakistan on Friday, Pakistani media reported.
The attack took place near Jamrud in the Ghundi area of the Khyber Agency. Around 300 people had been attending the mosque when the blast ripped through worshipers right after Friday prayers.
Local administrative officials could not say whether the bomb had been left in the mosque or was a suicide attack.
No group has yet claimed responsibility for the attack.
Muslims are currently celebrating the holy month of Ramadan, and the Friday prayers draw even bigger crowds than usual.
Bomb attacks have taken place across Pakistan due to the ongoing insurgency by the Taliban and the army’s attempts to suppress it, and also due to interethnic and religious fighting.