A deadly suicide blast at markaz of banned outftit Lashkar-e-Islam at the time of Juma congregation killed ten militants in Tirah Valley of Khyber Agency bordering Afghanistan, political authorities said. The blast ripped through Dars Mosque cum Madrassa of Lashkar e Islam in Akka Khel area of Bara tehsil, killing ten, the official report said. The bomber was heading towards the markaz of the extremists when intercepted by the Lashkar-e-Islami men who asked him to stop.