A group affiliated with the Taliban have claimed responsibility for the attack in the northwestern city of Bannu, the third since the start of Ramadan.
A dozen people were killed in a twin suicide bombing that targeted a military base in northwestern Pakistan on Tuesday.
Two suicide bombings breached a wall at a military base before other attackers stormed the compound and were repelled. Around 30 other people were wounded, according to officials and a local hospital.
Jaish Al-Fursan, a group affiliated with the Pakistani Taliban, claimed responsibility for the attack in Bannu and said that “dozens of members” of Pakistani security forces were killed.
It is the third militant assault in Pakistan since the Muslim holy month of Ramadan started Sunday.
The military didn’t immediately confirm any casualties, but Bannu District Hospital said that at least 12 people were dead, at least four of whom were children.
Bannu is located in the northwest province of Khyber Pakhtunkhwa that borders Afghanistan, and several armed groups are active there.
Militants have targeted Bannu several times. Last November, a suicide car bomb killed 12 troops and wounded several others at a security post.
In July, a suicide bomber detonated his explosives-laden vehicle, and other militants opened fire near the outer wall of the military facility.
Video editor • Rory Elliott Armstrong