Israel’s Supreme Court has rejected an appeal by Dr. Hussam Abu Safiya, the prominent Palestinian doctor from Gaza who has been detained without charge for over 500 days. The court said its decision to continue Dr. Abu Safiya’s imprisonment was based on “confidential materials” withheld from Abu Safiya and his legal team. Abu Safiya was moved to solitary confinement two weeks ago. Last week, Abu Safiya’s family said they fear he is being tortured in Israeli detention, after the doctor appeared by video link at a court hearing. Prior to his detention, Dr. Abu Safiya served as a pediatrician and director of Kamal Adwan Hospital in northern Gaza.