NEW : Pakistan 's Prime Minister justifies operations , saying talks failed . 7 Pakistani soldiers have died in the operation against militants near Afghan border . Military says it conducted airstrikes based on intelligence on presence of militants . Comment:
NEW : Pakistan 's Prime Minister justifies operations , saying talks failed . 7 Pakistani soldiers have died in the operation against militants near Afghan border . Military says it conducted airstrikes based on intelligence on presence of militants . The militants were linked to planning the Karachi airport attack , military says .