karachi pakistan pakistani peace activist report miss weekend eastern city lahore police one friends say tuesday raza mehmood khan 40 member aghaz-i-dosti start friendship group work peace build arch-rivals pakistan india hear since leave home sunday say rahim-ul-haq friend associate say group offices countries police official shehzad raza say khan family report miss since saturday one accuse report say investigate several social media activists critical army country extremists militant group go miss pakistan recent months four release nearly month disappear early year two ahmad waqas goraya asim saeed late allege interview bbc social media post pakistani intelligence abduct torture custody pakistan army deny accusations haq say khan speak discussion saturday topic extremism everyone discuss view course raza critical say say raza recent facebook post critical pakistani military especially view recent sit-in protest hard-liners paralyze islamabad two weeks extremists almost demand include resignation minister accuse blasphemy agreement broke army pakistani peace activist report miss police say