The family of the most prominent Palestinian prisoner, Marwan Barghouti, says that he has again been subjected to physical violence behind bars in Israel.
Arab Barghouti told the BBC he was "shocked and appalled" to hear from his father's Israeli lawyer that he had been assaulted three times by Israeli prison guards in the past month.
The Israeli Prison Service (IPS) said that "the allegations made are false and baseless".
Marwan Barghouti was convicted by an Israeli court of planning deadly attacks against Israeli civilians and is currently serving five life sentences plus 40 years.
He was arrested exactly 24 years ago, at the height of the Palestinians' second intifada, or uprising. He had set up the Tanzim, an armed wing of the Fatah political faction.
