At least "four or five" suspects and handlers involved in the suicide bombing attack in Islamabad have been detained, Pakistan`s Interior Minister Rana Sanaullah has claimed.

A policeman along with two suspected militants were killed and at least six others, including four policemen, injured in the bombing on Friday in the upscale residential area, barely 15km away from the garrison city of Rawalpindi, where Pakistan`s powerful military establishment is located.