At least three tribal police were killed and five injured Monday in an attack on a government office in north-western Pakistan, officials said, dpa reported.
Eight to 10 gunmen targeted the office of the administrative chief of the Khyber tribal district in Peshawar, capital of Khyber-Pakhtunkhwa province, said a district official who requested anonymity.
"The militants came in a vehicle and started shooting at the security personnel near the entrance of the building, resulting in a gunbattle in which three Levies soldiers were killed and five injured," the official said.
He said the troops killed two attackers and then cordoned off the area to launch a search for the other gunmen.
Geo television said at least one militant killed himself by detonating explosives strapped to his body.
No group took immediate responsibility for the attack.
Taliban militants have hideouts in the Khyber district.