Egyptian officials said Thursday that negotiations over a cease-fire in Gaza are at an impasse as Hamas insists on a process to end to the war. After nearly five months of war, much of Gaza is in ruins, and international pressure is growing for Israel and Hamas to reach a deal that would halt the fighting and release the remaining Israeli hostages held by Hamas. The U.S., Egypt and Qatar have been trying to broker an agreement that would stop the fighting for six weeks, and include the release of 40 hostages held in Gaza in exchange for Palestinians imprisoned in Israel.