dera ismail khan pakistan pakistani activist hunt taliban vow tuesday keep struggle militancy northern swat valley day narrowly escape car blast kill father passenger pakistani taliban insurgents take partial control valley 2007 oust two years late major military operation hail tell blow islamist violence group since carry revenge attack anti-taliban activists attempt extort money businessmen region pakistan station 4,000 soldier lose father uncle cousin critically wound fight rid area militants ahmed zeb member peace panel region tell reuters police officials say remote-controlled roadside blast target zeb vehicle kill two people injure two although escape vehicle time attack claim spokesman tehreek-e-taliban also know pakistani taliban cite peace committee support disbelievers term refer pakistan security force fight taliban militants since 2001. believe militants escape military operation behind attack zeb say possible informants region help identify target zeb peace panel group councils head regional leaders work security officials identify militants operate area provide assistance search operations continue work peace law order area zeb say add government need take seriously threat attack peace panel members families spokesman country interior ministry make immediate comment zeb remark 50 peace panel volunteer kill since 2009 last attack may 2016 zeb add swat first sizeable region outside pakistan lawless tribal regions border afghanistan fall militants 2,000 taliban fighters drive region government officials say since 2010 attack part life attempt 2012 assassinate nobel peace laureate malala yousafzai although murder stop past year follow series arrest police pakistani activist target blast vow maintain effort rein taliban