Large number of militants, armed with heavy weapons, attacked a security checkpost in Lower Kurram region, security sources said.
Security forces at the post repulsed the attack and killed around a dozen attackers, sources said.
The forces in a subsequent search operation, claimed to have found the bodies of 12 attackers from the area.
Policeman killed in Peshawar roadside blast
An Improvised Explosive Device exploded in Peshawar near a police check-post in Samar Bagh area, leaving a policeman dead.
Police sources have claimed to arrest a suspected man.
Security personnel reached at the site of the blast and cordoned off the area.