This comes as Pakistan's FrontierCorps launched an offensive against suspected militants and their hideouts in Lower Dir, which neighbors the violence-plagued Swat.
According to a White House press release dated Sept. 29th, the U.S. is providing high-tech equipment to help the FrontierCorps patrol the border with Afghanistan.
The victims comprised of an assistant police sub-inspector and three members of the FrontierCorps, a paramilitary force which uses recruits from Pakistan's tribal areas and is overseen by Pakistani army officers.
The soldiers, who were members of Pakistan's paramilitary FrontierCorps, had been missing since 21 December when 23 soldiers were attacked by up to 100 heavily-armed militants, a security official quoted by the AFP news agency said.