The humanitarian charity Medecins Sans Frontieres (MSF) has allegedly been evicted by Pakistani authorities from the Kurram tribal district.
In a statement, MSF said the authorities had refused it a permit to keep operating in the area on the Afghan border, where it has been providing healthcare since 2004.
It claims no reason has yet been given.
The group has been operating out of two hospitals in Kurram, providing inpatient treatment for children and premature babies, as well as other services.