Pakistan has witnessed a surge in militant attacks targeting security forces in recent years, with authorities blaming the TTP and allied groups for much of the violence.

A suicide bomber backed by gunmen has attacked a security checkpoint in northwest Pakistan, killing 15 members of the security forces.

Attackers rammed an explosive-laden vehicle into perimeter wall, 12 terrorists killed, military's media wing says in statement.

At least 15 people, including 12 soldiers, were killed in a suicide bombing in northwest Pakistan, the military said on Friday. Several others were injured in the attack.