The ill-fated coach was on its way to Orakzai agency from Kohat when it met a fatal accident while negotiating a sharp turn near Sara Mela and fell in a ravine, officials said.
The dead were identified as Muhammad Hilal, Liaquat Ali, Jamshed Ali, Muhammad Rauf, Rahat Ali and Aslat Khan. The women could not be identified.
The injured were rushed to hospital in Kohat.