BAJAUR AGENCY - Unknown militants blew up two more government primary schools in Bhai Chena area of Khar tehsil here on Tuesday. The sources informed that around 30 to 40 armed militants attacked the girls and boys primary schools and planted explosive material in the inner portion of the schoolrooms. The explosive material went off with the big bang and caused severe fear and panic among the masses. Assistant Political Agent of Bajaur, Iqbal Khattak confirmed the blowing up of the schools and said that the search operation had been launched to trace out the miscreants. He said that the total number of destroyed schools rose to 90, while 12 schools had been destroyed after the military operation in Bajaur. He said that the security forces had arrested 13 suspected persons who were being interrogated.