PESHAWAR: At least one security official was killer when three back to back Improvised Explosive Devices (IEDs) were blasted in Kuz Chamarkand, Tehsil Safi of Mohmand Agency on Saturday. According to sources, there three remote controlled IED blasts that critically injured Junior Commissioned Officer (JCO) Zahid Khan Khattak, who was rushed to a medical centre but succumbed to the injuries. The explosive material was planted near the outer wall of a house, a security forces official said, which went off twice with big bang, damaging the house. The third blast occurred on a roadside but no causality was reported. Soon after the blasts, the security forces cordoned off the area and started a search operation to arrest the miscreants involved in the incident.