"Around evening time on Monday, we saw some people in a bus approach the police station, shoot the gate open, and killing all the six officials who tried to resist them," said Festus Okoye.
The junta on Saturday staged a major show of might for its annual Armed Forces Day as the death toll from crackdowns since the coup climbed to at least 423.
Myanmar has been in turmoil since soldiers ousted civilian leader Aung San Suu Kyi last month, triggering nationwide protests demanding a return to democracy.
Security forces conducted two IBO at Datakhel in North Waziristan and at Zoida in South Waziristan tribal district.
Abdul Adam zeb alias Dung (TTP Bismillah group), commander Molvi Mehboob alias Molvi (TTP Sajna group) and commander Mir Salam alias Anas (TTP Sajna group) were killed by security forces.
The slain terrorists remained involved in militant activities against security forces, law enforcement agencies and locals of the area since 2009: ISPR
Military's media wing says the terrorists were also involved in recruiting terrorists in the area
After her detention in a dawn raid at the start of the month, Suu Kyi was charged under an obscure import and export law for unregistered walkie-talkies found in her home.