Militants blew up a girls school in the Khyber tribal district Sunday, destroying the building and wounding four people in neighbouring homes, officials said. Two explosions ripped through the 18-room government high school for girls at Kari Gar village and a boy who watched the premises is missing, possibly kidnapped by the militants, local administration officials said. 'The militants have blown up the school with two blasts and all rooms were demolished, said administration official Shafeerullah. 'Four people in neighbouring houses were also wounded and their homes slightly damaged. Were still trying to find out what happened to the office boy, Shafeerullah said. Another of Khybers administrators, Farooq Khan, confirmed the incident.