NORTH WAZIRISTAN - At least three personnel of the security forces sustained injuries when a roadside bomb exploded in North Waziristan Agency on Sunday. Sources said that a convoy of the security forces was on its way from Miranshah to Bunnu, when it hit an already planted Improvised Explosive Device (IED) exploded on Miranshah-Bannu road. As a result, three personnel of the security forces sustained injuries. The injured were rushed to army medical camp at Miranshah. The sources said that condition of the injured was stated stable. Soon after the blast, curfew was also imposed at tehsil Razmak and Mirali.