DNA testing had found that remains returned a day earlier purportedly of Ms. Bibas, a dead Israeli hostage, were in fact not hers, stirring outrage in Israel.

The remains of a woman killed while in captivity by Hamas was supposedly handed over to Israel on Friday, a day after her body was supposed to be brought back.

Hamas freed two hostages and was set to release four more from Gaza on Saturday in exchange for hundreds of Palestinian prisoners and detainees, after Israel confirmed that a body handed over hours earlier was that of hostage Shiri Bibas.