Israel has blocked aid shipments, including food, into Gaza since March 2, after the first 42-day phase of the Israel-Hamas ceasefire expired. According to Israeli figures, 59 hostages remain in Hamas captivity, around 24 of whom are believed to be alive. Israel has said it will employ all available means to ensure the return of all hostages and guarantee that Hamas will not be in Gaza the day after (the war) The Israeli government has said that it will send a delegation to Doha to discuss the future of the Gaza conflict with the Palestinian Authority. The Palestinian Authority says it will continue to work with Israel to ensure that the ceasefire is fully implemented. The U.S. State Department says it is working with the Israeli government on a plan to resume the flow of humanitarian aid to Gaza. The UN says the situation in Gaza is critical and that the situation is likely to deteriorate further as a result of the ongoing conflict. The United Nations has called on all sides to work together to find a solution to the crisis.