LashkarGah:Three children lost their lives and three ot hers sustained injuries as an explosive device went off in Nad Ali district of Afghanistan’s southern Helmand province, provincial poli ce spokesman Ahmad Jan said.The blast took place in Hiwad Bazaar area on Saturday afternoon, killing three children and injuring three others, the official confirmed.All the victims were students of a religious school, the official added without provid- ing more details.A day earlier on Friday, a deadly blast killed 18 people including a renowned cleric and injured 23 others in western Herat prov ince of war-torn Afghanistan.