Three vehicles of a bomb disposal squad were travelling to Zangara check-post from Zahidullah security post when militants ambushed them with rockets and Kalashnikovs in Speena Mella area.
Three security personnel were killed and seven others suffered injuries in the attack. Their names could not be ascertained. The injured were taken to the combined military hospital in Bannu.
Security forces cordoned off the area after the incident and started a search operation.
Speena Mella is located near Zangara where Baitullah Mehsud and his wife were killed in a drone attack on the house of his father-in-law on Aug 5, 2009.
