The attackers opened fire and threw grenades as they attempted to enter the sessions court premises in Tangi, prompting retaliatory fire by the security forces deployed there. Three attackers were killed in the police action.
Jamaat-ul-Ahrar (JuA), a faction of the Pakistani Taliban, claimed responsibility for the attack.
One bomber was killed in the firing at the gate and the second was killed as he entered the court. The third bomber died when he detonated his explosives.