In Afghanistan, five people including three policemen and two militants have been killed in exchange of fire at a police checkpoint in Ghazni province. Provincial police chief Khayalbaz Shirzai today said the Taliban militants raided a police checkpoint in Nani village of Andar district late last night and police returned fire. <br/><br/>The exchange of fire lasted for about two hours in which two rebels and three constables were killed. Two insurgents and two policemen sustained injuries.