A 40-year-old Palestinian prisoner being held in Palestinian Authority custody in Jericho died on Friday, Palestinian news agency Ma'an cited a senior Palestinian official as saying.Ayman Mohammad Sharif Samara, who was detained on charges of assault, was reportedly suffering from diabetes, hypertension and other medical conditions.Ma'an reported that the PA attorney-general denied Samara was tortured or beaten during interrogations and said an autopsy will be performed on his body.