The Palestinian Civil Defense in Gaza said there could be as many as 10,000 bodies buried under rubble all across the strip, as many displaced Gazans try to return to their homes under a nascent ceasefire agreement.

The ceasefire between Israel and Hamas it set to go into effect at 8:30 a.m. local time (0630 GMT) on Sunday, mediator Qatar said. It will pause the fighting after 15 months of war and see the release of dozens of hostages held by the militants in the Gaza Strip and hundreds of Palestinians imprisoned by Israel.

Three Israeli hostages and 90 Palestinian prisoners were expected to be released Sunday as the ceasefire in Gaza appeared to hold.