In a communiqué, the group defended the measure and called to join the remaining hundreds of Palestinians held in Israeli prisons under the administrative detention system, criticized by several international organizations.
The demonstrators are members and supporters of the Popular Front for the Liberation of Palestine.
According to the Palestinian Prisoners Club, 28 of 30 prisoners are held in the Ofer Prison, one in the Negev Prison, and one in the Hadarim Prison.
As part of the protest, the strikers also announced their boycott to Israeli courts.
The administrative detention system is a procedure used by Israel to arrest Palestinians for renewable intervals that usually range from three to six months, based on undisclosed evidence that even the defendant’s lawyer is forbidden to see.
Several detainees under this rule systematically go on hunger strikes indefinitely to draw attention to their cases and force the Israeli authorities to release them.