Around 3,000 Palestinian prisoners went on hunger strike on Saturday to protest the death of Arafat Jaradat, a Palestinian detainee who died in Israeli custody.
Thirty-year-old Jaradat died of a heart attack on Saturday after being arrested on suspicion of throwing stones at Israeli soldiers in Hebron.
"About 3,000 prisoners announced that they would refuse meals," Israel Prisons Service spokeswoman Sivan Weizman told AFP.
The solidarity strike comes amid a wave of protests sweeping the West Bank and Gaza. Young Palestinians have clashed with the Israeli Defense Forces (IDF) across the occupied territories.
Israeli prime minister, Binyamin Netanyahu, has demanded that the Palestinian Authority step in to calm the situation down.
Human rights groups have long called for the end of the use of administrative detention - effectively detention without charge - by Israel. Of the more than 4,500 Palestinians in Israeli jails, 178 are being held using administrative detention.