The militants, who reportedly infiltrated into Pakistani territory from Afghanistan, attacked a security check post in the remote mountainous region of Karakar of Upper Dir district in Khyber-Pakhtunkhwa province yesterday, security officials said.
One soldier was killed and several others were injured in the exchange of fire.
The Pakistani troops repulsed the attack and killed five militants. The other militants managed to escape, officials said.
Local residents said the clash between the militants and the security forces continued for several hours and both sides used heavy weapons.
The militants fled after reinforcements were sent to the check post.
The same region has witnessed several clashes between troops and militants based in Afghan territory.
