BARA (Online) Unknown militants Friday blew up an under-construction building of a government technical college in Bara of Khyber Agency. According to a private TV channel, the militants blew up the institute with explosives. The millions of rupees had been spent on building of the institute and it was still under-construction. Meanwhile, forces started operation in the mountainous area of Sheenqamar and demolished three houses. The security forces also arrested four people for violation of curfew while arms have been recovered from the area.