After the release of the last living hostages and Palestinian prisoners and detainees, the tenuous ceasefire in Gaza was holding Tuesday while questions remain over other key parts of a U.S. plan for the region.

CNN’s Jeremy Diamond breaks down growing frustrations in Israel over Hamas’ slow return of the deceased hostages and Israel’s plans to limit aid in response.

Hamas war was tested Tuesday as the slower-than-hoped return of deceased hostages from Gaza prompted an Israeli military agency to declare a “violation” of the truce agreement.

Hamas has released the remains of four more hostages but Israel is now saying one of the bodies does not match any of the hostages. The ceasefire plan requires Hamas to return all of the remains, but Hamas said some may be lost or buried under rubble.

Israel was expected to allow Gaza's sole border crossing to the outside world to reopen Wednesday to allow humanitarian aid into the devastated territory as part of a US-backed ceasefire

The last 20 living Israeli hostages held in Gaza have been released and reunited with their families, marking a pivotal step in the U.S.-brokered peace deal between Israel and Hamas. Under the terms of the agreement,

All 20 living hostages held by Hamas and hundreds of Palestinian prisoners held by Israel walked free Monday as part of a ceasefire pausing two years of war that decimated the Gaza Strip and killed tens of thousands of Palestinians.

H amas released all 20 remaining living hostages held in Gaza on Monday, while Israel began releasing hundreds of Palestinian prisoners as part of a ceasefire pausing two years of war that pummeled the territory,