Five Afghan militiamen were killed and four others injured when their vehicle struck a roadside bomb in volatile southern Afghanistan, said a senior military official on Thursday. The militiamen, hired by the NATO-led International Security Assistance Force (ISAF) to help with security, were killed on Wednesday in southern Uruzgan provinceÂ’s Taliban-dominated Charchino district, said Afghan General Rahmatullah Raufi. Taliban spokesman Yousuf Ahmadi called AFP from