Pakistani authorities scrambled Tuesday to determine how a suicide bomber was able to carry out one of the country’s deadliest militant attacks in years, unleashing an explosion in a crowded mosque inside a highly secured police compound in the city of Peshawar. The death toll from the blast climbed to 100.
Monday morning's bombing, which left at least 225 wounded, raised alarm among officials over a major security breach at a time when the Pakistani Taliban, the main anti-government militant group, has stepped up attacks, particularly targeting the police and the military.