BETHLEHEM, WEST BANK - APRIL 17: Hundreds of Palestinians march demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
BETHLEHEM, WEST BANK - APRIL 17: Palestinians burn a trash dumpster after the Israeli security forces intervene in the march demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
BETHLEHEM, WEST BANK - APRIL 17: Palestinians throw stones at Israeli security forces after the Israeli security forces intervene in the march demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
BETHLEHEM, WEST BANK - APRIL 17: Palestinians throw stones at Israeli security forces after the Israeli security forces intervene in the march demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
BETHLEHEM, WEST BANK - APRIL 17: Israeli security forces intervene in Palestinians, who hold a march to mark the "Palestinian Prisoners Day", in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
BETHLEHEM, WEST BANK - APRIL 17: Israeli security forces intervene in Palestinians, who hold a march to mark the "Palestinian Prisoners Day", in Bethlehem, West Bank on April 17, 2017. ( Mamoun Wazwaz - Anadolu Agency )
GAZA CITY, GAZA - APRIL 17: Palestinians hold pennants of Fatah Movement as they gather in front of the the Unknown Soldier's monument to march towards the International Red Cross building, during a demonstration demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day, in Gaza City, Gaza on April 17, 2017. ( Mustafa Hassona - Anadolu Agency )
GAZA CITY, GAZA - APRIL 17: Palestinians hold pennants of Fatah Movement as they gather in front of the the Unknown Soldier's monument to march towards the International Red Cross building, during a demonstration demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day, in Gaza City, Gaza on April 17, 2017. ( Mustafa Hassona - Anadolu Agency )
GAZA CITY, GAZA - APRIL 17: Hundreds of Palestinians gather in front of the the Unknown Soldier's monument to march towards the International Red Cross building, during a demonstration demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day, in Gaza City, Gaza on April 17, 2017. ( Mustafa Hassona - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )
RAMALLAH, WEST BANK - APRIL 17: Hundreds of Palestinians march at Yasser Arafat Square demanding the release of the Palestinian prisoners in Israeli jails during the Palestinian Prisoners Day in Ramallah, West Bank on April 17, 2017. ( Issam Rimawi - Anadolu Agency )