'suicide bomber detonated an explosives-laden vest inside a mosque in northwestern Pakistan during midday prayers on Friday, according to government officials, a strike apparently aimed at worshipers who had denied support to the Taliban.
Officials estimated the death toll at around 50. "At least 70 people are injured," said Shahid Ullah, a district official. "Many are in a critical condition."
Pakistani news media reported that the Pakistani Taliban claimed responsibility for the attack. '
Apparently religiously motivated Muslims have no qualms with killing people in a mosque.