A global campaign led by churches and an Islamic center across 15 U.S. states is sending hundreds of solidarity postcards to female Palestinian detainees in Israeli prisons, but Israeli prison authorities are blocking them from being delivered.

For months Palestinian prisoners have shared testimonies of torture at the hands of Israeli military and prison authorities. New reports shed more light on the abuse, particularly sexual violence, carried out inside Israeli detention centers.

The family of Farouq Issa, 30, says he was arrested by Israeli forces and thrown into administrative detention as a healthy young man. But four months later, he returned a ghost of himself, and doctors say he has just days left to live.