Israel has decided to postpone the scheduled release of more than 600 Palestinians on Saturday, who were set to be freed as part of the ongoing ceasefire and prisoner swap agreement between Israel and Hamas.

The six Israelis were the last living captives set to be released in the first phase of the cease-fire. The agreement, strained for weeks, has an uncertain future.

Israeli Prime Minister Benjamin Netanyahu says a body that Hamas militants released during the handover of remains of Israeli hostages is that of a woman from Gaza instead of that of Shiri Bibas, the mother of two young boys whose bodies were returned on Thursday.