islamabad khyber pass border pakistan afghanistan close traffic tuesday return pakistani diplomat shoot dead afghanistan unknown gunmen pakistan summon afghan charge affaires islamabad protest kill consular official nayyar iqbal rana monday near residence eastern city jalalabad pakistan foreign office say statement relations afghanistan pakistan go stormy period tensions late u.s. strategic plan region dispute torkham border cross pakistan close periodically receive body late nayyar iqbal rana torkham today government official torkham ask identify tell reuters pakistan-afghanistan border close type traffic afghanistan ambassador pakistan omar zakhilwal condemn kill message twitter say convey government sympathies ministry foreign affairs islamabad kill come around week deputy governor kunar province eastern afghanistan kidnap near pakistani city peshawar although immediate indication connection two border cross close body pakistani diplomat shoot afghanistan return