Erekat quits over Palestine Papers - Middle East - Al Jazeera English : "Saeb Erekat, the Palestine Liberation Organisation's chief negotiator, has resigned from his post, after it emerged that the source of the Palestine Papers leak was in his own office. The decision was announced on Saturday, at the same time as a Palestinian Authority (PA) official announced that the body would be holding presidential and legislative elections before September this year. Erekat said his resignation came as a result of an internal investigation into the Palestine Papers, a set of leaked documents that was released by Al Jazeera. Erekat, who has retained his position in the PLO's executive committee, said the investigation showed that the papers were leaked from the Negotiations Support Unit, which he heads. Earlier, he had said he would bear all responsibility if any security breach was found in his office. Speaking to Al Jazeera, Mahmoud Zahar, a senior Hamas leader, welcomed the resig...