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.

Hamas released six hostages from Gaza on Saturday. Israel was due to release 620 Palestinian detainees in return, but has delayed the exchange citing further security reviews.

Six living hostages are back home in Israel after Hamas released them in the seventh and final phase of the agreement as the handoff of 620 Palestinian prisoners was indefinitely delayed.