The content originally appeared on: CNN Islamabad, Pakistan (CNN)A blast struck a Shia mosque during Friday prayers in Pakistan's northwestern city of Peshawar, killing at least 56 people and injuring another 196, police and hospital officials said. More than 50 people were injured in the explosion, according to Mohammad Asim, the spokesperson for Peshawar's Lady Reading Hospital, where victims were being treated. The source of the blast is suspected to be a suicide attack, but investigations are ongoing, Peshawar's police […]