Hamas says it will only release an American-Israeli and the bodies of four other hostages if Israel implements the existing ceasefire agreement in the Gaza Strip, calling it an “exceptional deal” aimed at getting the truce back on track. A senior Hamas official said Saturday that long-delayed talks over the ceasefire’s second phase would need to begin the day of the release and last no longer than 50 days. Israel would also need to stop barring the entry of humanitarian aid and withdraw from a strategic corridor along Gaza’s border with Egypt. Hamas would also demand the release of more Palestinian prisoners in exchange for hostages.