An official said the landslide occurred in mountainous Sikandaro Kandao village in Bajaur Agency when people were gathering mud to build a house.
The bodies of the victims were retrieved by local people. The dead include six girls, a boy, and a woman. The Khasadar Force rushed to the spot and carried out rescue and rehabilitation activities.
In other incident, two civilians sustained injuries when an improvised explosive device went off at Landi Kotal in Khyber Agency.
Security forces cordoned off the area and a search operation has been initiated.