NEW : Afghanistan 's Nangarhar province borders Pakistan 's loosely governed tribal region . 3 border police officers killed in suicide - bomber attack , Afghan government says . Strike hits Afghanistan 's Kabul province , near Pakistan border , official says . # ##s Wednesday morning in Afghanistan 's Nazyan district .
NEW : 3 border police officers killed in suicide - bomber attack , Afghan government says . Strike hits Afghanistan 's Kabul province , near Pakistan border , official says . # ##s Wednesday morning in Afghanistan 's Nazyan district .