Israel-Gaza updates: 17 more hostages released, including 4-year-old American girl, officials say

Fourteen Israeli and three foreign hostages were released Sunday, the IDF said.

Thousands of people have died and thousands more have been injured since the militant group Hamas launched an unprecedented surprise attack on Israel on Oct. 7 and Israel retaliated with a bombing campaign and total siege of the neighboring Gaza Strip, leaving the region on the verge of all-out war.

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What we know about the conflict

The latest outbreak of war between Israel and Hamas, the Palestinian militant group that governs the Gaza Strip, has passed the four-month mark.

In the Gaza Strip, at least 30,228 people have been killed and 71,377 others have been wounded by Israeli forces since Oct. 7, according to Gaza's Hamas-controlled Ministry of Health.

In Israel, at least 1,200 people have been killed and 6,900 others have been injured by Hamas and other Palestinian militants since Oct. 7, according to the Israel Defense Forces.

There has also been a surge in violence in the Israeli-occupied West Bank. Israeli forces have killed at least 395 people in the territory since Oct. 7, according to the Palestinian Ministry of Health.

The ongoing war began after Hamas-led militants launched an unprecedented incursion into southern Israel from neighboring Gaza via land, sea and air. Scores of people were killed while more than 200 others were taken hostage, according to Israeli authorities. The Israeli military subsequently launched retaliatory airstrikes followed by a ground invasion of Gaza, a 140-square-mile territory where more than 2 million Palestinians have lived under a blockade imposed by Israel and supported by Egypt since Hamas came to power in 2007. Gaza, unlike Israel, has no air raid sirens or bomb shelters.


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Cease-fire, hostage release will not happen before Friday: Senior Israeli official

The cease-fire and negotiated release of hostages from Hamas will not start until Friday, a senior Israeli official told ABC News.

The official said there is no danger of the deal falling apart before that day.

Earlier, Israeli National Security Minister Tzachi Hanegbi said the cease-fire was expected to begin Thursday at 10 a.m. and no hostages would be released before Friday.


Israeli cabinet has list of hostages expected to be released

The Israeli cabinet now has the list of hostages expected to be released, according to an Israeli official.

Hamas and Israel agreed to a cease-fire lasting for at least four days to allow the release of at least 50 hostages -- women and children -- captured by Hamas from Israel on Oct. 7, in exchange for at least 150 Palestinians -- women and teenagers -- currently being held in Israeli prisons.

It is expected that the cease-fire and the prisoner swap will begin Thursday morning.

Families of the hostages held by Hamas will only be notified after the hostages are in Israeli hands, the Israeli official said.


Israeli Supreme Court rejects appeal against hostage deal

Israel's Supreme Court rejected the only appeal submitted thus far against the hostage deal, clearing the way for the deal to go through.

Israeli law requires a 24-hour waiting period after the vote before the agreement can be put into action.

It is expected that the cease-fire and the prisoner swap will begin Thursday morning.


Families of American hostages speak out

The families of American hostages said they are "thrilled" 50 hostages are expected to be released, but added, "We are not going to rest until every single hostage is returned"

The families also said they "request an immediate update on whether our family members are alive and well."

The families thanked President Joe Biden for his work on the hostage deal, adding, "We call on all world leaders to continue prioritizing this goal."

The whereabouts of nine U.S. citizens and one U.S. permanent resident are unknown, according to White House national security adviser Jake Sullivan. He said it's unclear whether they were among the hundreds of people who were taken hostage by Hamas.

"We don't know for certain that all 10 are still alive and we’ve been honest about that -- what we know and what we don't know," Sullivan told ABC News' "Good Morning America" on Wednesday. "We know that among those 10, three are women and children -- two women one child. And we believe that those three will be among the 50 who are released."

"Until we actually see them come out, be in the arms of their loved ones, get home safely, we cannot be fully confident," he added.


Hamas delays release of hostages over alleged 'violations' of cease-fire agreement

Hamas announced that it will be delaying the release of Israeli hostages, accusing Israel of violating the cease-fire agreement regarding aid trucks and the agreed-upon terms for the release of Palestinians imprisoned in Israel.

The Al-Qassam Brigades -- the armed wing of Hamas -- said it had decided to delay Saturday's scheduled second round of hostage releases until Israel committed to allowing aid trucks to enter northern Gaza. Hamas was expected to release 13 Israeli hostages in exchange for the release of 39 Palestinians imprisoned in Israel on Saturday, sources told ABC News.

"The Al-Qassam Brigades decides to delay the release of the second batch of hostages until the occupation adheres to the terms of the agreement regarding the entry of relief trucks into the northern Gaza Strip, and due to its failure to adhere to the agreed-upon criteria for releasing prisoners," Al-Qassam Brigades said in a statement.

Hamas leader Osama Hamdan, who is based in Lebanon, said relief trucks that arrived in northern Gaza today were half of the number that was agreed upon.

"There are violations committed by the Israelis in implementing the terms of the truce, some of which occurred yesterday and were repeated today," Hamdan said Saturday, adding that another issue at stake was the reported shooting of two Palestinians on Friday as they tried to reach northern Gaza.

A senior Israeli political source told ABC News that Israel did not violate the agreement. The IDF said about 200 trucks carrying humanitarian aid are expected to enter Gaza today, after 200 trucks with aid entered Gaza yesterday via the Rafah crossing and delivered their cargo to international aid organizations.

The Palestinian Red Crescent said 61 trucks carrying food, water and medical supplies headed to northern Gaza on Saturday, the largest aid convoy to reach the area since the start of the war.

-ABC News' Ayat Al-Tawy, Nasser Atta, Jordana Miller