The death toll from a bomb blast at a religious gathering on Friday in eastern Afghanistan rose to 15, with all the victims children, officials said. "Unfortunately, as a result of this incident 15 people, all children, were martyred," said Wahedullah Jumazada, spokesman for the governor of Ghazni province, where the explosion took place. Ghazni police confirmed the blast, and that all those killed were children. str-mam-jds/ecl/leg