Al-Hayaja, from Jenin, was sentenced to life imprisonment and has served eight years, four months of which was spent in solitary confinement.
His only child, a 15-year-old daughter, is the only family member who has received permission to travel to the prison. However, prison guards have refused to allow her visits, committee coordinator Baha Al-Madhoum said.
The coordinator added that Al-Hayaja, from Jenin, developed skin diseases in his isolation cell, and his hand has been amputated, but he has been denied treatment or visits from his lawyer.
Al-Madhoum called on human rights organizations to intervene in Al-Hajaya’s case, and in the cases of the many other detainees held in isolation.