Policemen inspect the blast site in Jalalabad, capital of east Afghanistan's Nangarhar Province, May 15, 2013. A policeman was killed, another policeman and seven civilians were wounded when an IED went off in Jalalabad on Wednesday. (Xinhua/Tahir Safi)

A wounded man receives medical treatment at a hospital in Jalalabad, capital of east Afghanistan's Nangarhar Province, May 15, 2013. A policeman was killed, another policeman and seven civilians were wounded when an IED went off in Jalalabad on Wednesday. (Xinhua/Tahir Safi)