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.
US doesn't know where last unaccounted for American woman is: Kirby
The U.S. does not know where the last unaccounted for American woman is or what her condition is, according to National Security Council spokesperson John Kirby.
Since the cease-fire began several days ago, only one American woman and one American child have been released by Hamas.
Asked by ABC News if the U.S. believes Hamas does not know where all the hostages are -- or if they're propagating that information as a delay tactic -- Kirby said even though some other groups also took hostages, "That’s not to say that Hamas doesn’t have visibility on that, or doesn’t have a way to find out about it."
Kirby said Israel has made clear that "when these pauses are over, they intend to go back at it."
"And as they make that decision, they’ll continue to find support from the U.S. in terms of tools and capabilities, the weapons systems they need, as well as the advice and the perspectives that we can offer in terms of urban warfare," Kirby said.
He added that he believes the U.S. approach has had a "practical effect" on the way Israel is conducting its operations. Kirby said the U.S. shared experiences with urban warfare in places like Fallujah and Mosul in Iraq, and that the Israelis were "receptive" to those lessons learned.
-ABC News' Selina Wang
Kirby: Jerusalem attack does not 'technically' violate cease-fire agreement
Thursday morning's shooting carried out by Hamas at a Jerusalem bus stop did not violate the cease-fire agreement because "this attack happened in Jerusalem" and "the pause is in the fighting more specific to Gaza," National Security Council spokesperson John Kirby said.
"It didn't technically violate the deal that was in place, but obviously it's a stark reminder of who they’re facing and what kind of enemy they’re opposing," Kirby continued.
"If anybody's guessing and wondering whether Hamas still has murderous intentions against the Israeli people, just look at what happened in Jerusalem," Kirby said.
At least three people were killed in Thursday's shooting. The two gunmen were killed by two off-duty Israeli soldiers and a civilian who were near the scene, according to Israeli police.
Hamas claimed responsibility, saying the shooting was in response to Israel's "unprecedented crimes" including "brutal massacres" in Gaza and the killing of children in the occupied West Bank.
-ABC News' Fritz Farrow
Gaza families brace for winter
About 80% of Gaza’s population is now homeless, with many people forced to live in make-shift shelters, largely exposed to the elements, according to the United Nations.
The bad weather is compounding an already difficult situation, several Gaza residents told ABC News in interviews conducted during the last two weeks. People living in tents are struggling to make them watertight. They are patching them up as best they can with tarpaulin. The rainy season in Gaza usually begins in late November or early December and temperatures can get as low as 50 degrees Fahrenheit.
"At 6 in the morning, we woke up to rain falling and the place was soaked with water," Iqbal Saleh Mohsen Abu Al-Saud, one resident, told ABC News, when the winter rains first came to Gaza last week.
"We are 30 people in this tent,“ he explained. "We were displaced from Gaza City from the Sheikh Radwan neighborhood. We went from home to schools, then to tents, from place to place. Without food or shelter, we only left our homes because of the bombing."
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2 more Israeli hostages released in Gaza, IDF says
Two Israeli hostages released in the Gaza Strip -- 21-year-old Mia Schem and 40-year-old Amit Sosna -- have been transferred to the Red Cross and are now on their way to Israel, the Israel Defense Forces said Thursday evening.
More hostages are expected to be released in the coming hours, according to the IDF.
Netanyahu tours Gaza Strip, PM's office says
Israeli Prime Minister Benjamin Netanyahu toured the Gaza Strip on Sunday and vowed the return of all of the hostages taken by the Hamas terror group, according to the prime minister's office.
Netanyahu spent time with Israeli commanders and fighters and visited one of the Hamas tunnels uncovered by Israeli forces, the prime minister's office said in a statement.
"We are here in Gaza with our heroic fighters," Netanyahu said in a video released by his office showing him wearing a helmet and flak jacket, and surrounded by Israeli soldiers. "We make every effort to return our abductees, and eventually we will return them all. We have three goals for this war: eliminate Hamas, return all our abductees, and ensure that Gaza does not become a threat to the State of Israel again."
Netanyahu added, "We continue until the end -- until victory. Nothing will stop us, and we are convinced that we have the power, the strength, the will and the determination to achieve all the war's goals, and we will."
-ABC News' Bruno Nota and Jordana Miller