4 dead, 7 critical after mysterious gym explosion in Afghan capital

The death toll from an explosion in a mostly Shiite Muslim neighborhood of Afghanistan's capital increased to four, with seven people critically injured, a police spokesperson said Friday . The cause of the Thursday evening blast at a boxing club in Kabul is still not known. Khalid Zadran, a spokesman for the city's police chief, said the investigation into the blast is ongoing. He initially reported that two people died and nine were injured. Video taken after the explosion shows part of a buil