Three Frontier Constabulary (FC) personnel were killed in an improvised explosives device (IED) blast in South Waziristan on Sunday night, the Inter-Services Public Relations said.
Dawn quoted sources within the political administration, as saying that the blast occurred when the security men were on a cordon and search operation on motorbikes in Khan Kot Zarmina area of Toe Khula district.
After the blast, the area was sealed by security forces and a search operation was started to arrest the perpetrators.
FC personnel have frequently been targeted in the past few months in the Federally Administrated Tribal Areas.