Islamabad, Pakistan (CNN) -- The beheaded bodies of 10 Pakistani soldiers were found in a tribal region bordering Afghanistan on Monday, a senior government official said.
Militants kidnapped the soldiers after attacking an army checkpost in Orakzai Agency on December 21, said Khushhal Khan, a government official in the region.
No group has claimed responsibility, Khan said.
On Thursday, the Pakistani Taliban claimed responsibility for killing 15 Pakistani security personnel.
Ihsanullah Ihsan, a spokesman for the militant group, said those killings were in response to a search operation for militants conducted in the country's Landi Kotal tribal area, where a number of women were arrested by Pakistani security forces