The director of the Al-Shifa hospital in Gaza City has said several Palestinians in Israeli jails died during interrogation, torture, medical negligence, and deprivation of medicine, Anadolu Agency reports.

Speaking at a press conference following his release, Mohammad Abu Salmiya said he and the other released Palestinians left behind Palestinian prisoners in Israeli jails “who experience difficult conditions.”

He added that the Palestinian detainees are subjected to physical and psychological torture, and are offered few quantities of food.

“Gaza prisoners lost (on average) 25 kilograms (55 pounds) of their weights because of lack of food,” Dr. Abu Salmiya said.

He also noted that the Israeli doctors and nurses were also part of the assault and punishment of the Palestinian prisoners by not providing them with the required medical treatment.