An explosion tore through a Shiite mosque in northern Afghanistan on Friday, killing at least 50 people and leaving scores of others injured, according to a Taliban source.The Islamic State claimed responsibility for the deadly attack through its affiliate news website, while Reuters reported the death toll could exceed 70, citing officials from local health authorities.The blast at the mosque in Kunduz Province during the weekly Friday prayers marked the deadliest incident since the Taliban launched a provisional government last month.State media said over 180 people were either killed or …READ FULL ARTICLE