Nineteen Israeli prison guards are now under investigation following the death of a 38-year-old Palestinian security prisoner while in their custody, authorities announced on Thursday. Thaer Abu Assab was found with "severe signs of violence" on his body at Ketziot prison in the southern Negev Desert, where he was serving a 25-year sentence for attempted murder. The Palestinian Prisoners' Club, an advocacy group, has demanded a thorough investigation, including an autopsy.

Abu Assab's death occurred on November 18, but details were initially kept under a gag order. The Palestine Prisoners' Club had expressed concern after police cited difficulties in identifying the guards involved due to their helmets. Finally, after the expiration of the gag order, police announced the launch of an investigation into the prison guards in question. The Israel Prison Service has expressed its cooperation in the investigation.

The incident has sparked widespread condemnation and calls for justice from the Palestinian community. Many have criticized the conditions within Israeli prisons, alleging mistreatment of Palestinian detainees. The death of Abu Assab further fuels these concerns and raises questions about the treatment and safety of Palestinian prisoners in Israeli custody.

The Palestinian Prisoners' Club has stressed the importance of a comprehensive investigation, including a thorough autopsy to determine the cause of Abu Assab's death. They have demanded that those responsible for this alleged act of violence be held accountable.

As the investigation unfolds, it is expected that there will be increased scrutiny on the treatment of Palestinian prisoners and the conduct of prison guards within Israeli correctional facilities. The outcome of the investigation will likely have significant implications for the Israeli prison system and its practices moving forward.