Israel-Gaza updates: Israel says ground operation underway in southern Gaza
The IDF said it's carried out 10,000 airstrikes in the Gaza Strip.
The temporary cease-fire between Hamas and Israel ended early Friday, and Israel has resumed its bombardment of Gaza.
The end of the cease-fire came after Hamas freed over 100 of the more than 200 people its militants took hostage during the Oct. 7 surprise attack on Israel. In exchange, Israel released more than 200 Palestinians from Israeli prisons.
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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.
IDF, Hamas accuse each other of violating cease-fire
Hamas and the Israel Defense Forces have accused each other of violating the cease-fire agreement.
The IDF said three explosives have been detonated near Israeli troops in two different locations in the northern Gaza Strip, leaving Israeli soldiers "lightly injured."
The IDF said terrorists opened fire in one of the locations, and the Israeli army fired back in response.
Hamas said in a statement, "As a result of a clear violation by the enemy of the truce agreement in the northern Gaza Strip today, field friction occurred and our mujahideen dealt with this violation."
Hamas said it calls on the mediators to pressure Israel to adhere to the truce.
US aid for Gaza arrives in Egypt
A Department of Defense plane carrying humanitarian aid -- including health supplies and winter clothes -- has arrived in Egypt to help the 1.8 million displaced residents in Gaza.
"More is on the way," USAID’s Bureau for Humanitarian Assistance said.
Gaza residents return home for 1st time
The cease-fire between Israel and Hamas has allowed some residents of Gaza to return home for the first time to survey what was left.
"I said I would go back to my house and tidy it up and sweep ... but I came and found it destroyed. I am very shocked by what I saw," Um Raed Al-Najjar told ABC News.
Another resident, Muhammad Al-Najjar, said his 80-year-old cousin lost his two-story house.
"His life's work was gone," he said.
"We are civilians and have nothing to do with anything," Muhammad Al-Najjar continued. "This whole street has nothing to do with anything 'political.'"
Muhammad Al-Najjar added, "We were all waiting for the truce because we were psychologically tired -- we became mentally ill. The majority of people will lose their minds. … What is the fault of a child who is 2, 4 or 3 years old? Did he participate in the war?"
5th hostage transfer begins, Israeli source says
The process of transferring a fifth group of Hamas-held hostages has begun, a source in the Israeli Prime Minister's Office with direct knowledge of the operation told ABC News on Tuesday evening.
It was unclear how long the process would take to be completed. It took about an hour on Monday night for hostages to be transferred from the Gaza Strip back to Israel.
-ABC News' Jordana Miller and Morgan Winsor
Hamas claims 3 hostages, including 10-month-old, were killed by previous Israeli strikes on Gaza
Hamas' military wing al-Qassam Brigades alleged Wednesday that three hostages have died as a result of the Israeli military's previous bombings in the Gaza Strip.
In a statement posted on a Telegram channel associated with the al-Qassam Brigades, the slain hostages were identified as Shiri Silverman Bibas, Kfir Bibas and Ariel Bibas. It was unclear when the trio had allegedly died and ABC News was unable to verify the claim.
Several members of the Bibas family, including 32-year-old Shiri, her 4-year-old son Ariel and her 10-month-old son Kfir, were kidnapped from their kibbutz in southern Israel during Hamas' attack on Oct. 7 and taken hostage to Gaza, according to relatives and Israeli authorities.
The Israel Defense Forces confirmed in a statement Wednesday that it is investigating the reports of their deaths.
"IDF representatives spoke with the Bibas family following the recent reports and are with them at this difficult time. The IDF is assessing the accuracy of the information," the IDF said. "Hamas is wholly responsible for the security of all hostages in the Gaza Strip. Hamas must be held accountable."
In a statement obtained by ABC News, the Bibas family said Wednesday that they are "updated on the latest Hamas publication."
"We are waiting for the news to be confirmed or hopefully refuted soon by military officials," the family added. "We thank the people of Israel for the warm embrace but ask to maintain our privacy at this complex time."
-ABC News' Ayat Al-Tawy, Anna Brund, Jordana Miller, Dana Savir and Morgan Winsor