Five security men were killed and two others injured in militants attack at a security check post in Kakakhel area of tehsil Bara in Khyber Agency, a private TV reported. According to sources, militant fighters attacked the post with heavy weapons killing five security men on the spot including three F.C. and two police men. The injured persons have been transferred to Peshawar hospital in precarious condition. The forces have initiated search operation against the militants in the region.