Israel "will continue to fight until the complete victory over Hamas."
The temporary cease-fire between Hamas and Israel ended on Dec. 1, 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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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.
The death toll in Gaza since the start of the Israel-Hamas war has now surpassed 20,000, according to the Hamas-run Gaza Ministry of Health.
President Joe Biden called the death toll "tragic."
As the death toll in Gaza nears 20,000, National Security Council spokesman John Kirby said Wednesday that "the right number of civilian casualties is zero."
“There's no number of an innocent civilian killed or wounded that's acceptable, nor should it be acceptable by anybody, which is why we're going to continue to work with the Israelis about being more precise, more targeted, more delivered in their military operations," Kirby said.
He said Israel has “taken on our concerns, and they have been receptive, and they have adapted their military operations to try to bring the number of civilian casualties down.”
“We want to see the number zero, but they have made some efforts,” Kirby added.
-ABC News’ Karen Travers and Cheyenne Haslett
The Palestinian Islamic Jihad released a video on Tuesday of two Israeli hostages pleading for their release.
The men -- who identified themselves as Gadi Moses and Elad Katzir -- spoke as they appeared in front of a plain background in the nearly 2 1/2-minute video.
"I want to convey to my friends and supporters that we must increase the pressure so that the government understands what we want," Moses said in the video provided by the hostage-takers. "We want every effort to be made so that we will soon arrive back home to our friends, our family, to our home."
Addressing Israeli leaders, including Prime Minister Benjamin Netanyahu and Israel Defense Forces Commander Hertzi Halevi, Moses said he feared being killed by an Israeli bomb.
"This situation where we could die at any moment is an unbearable situation; there is a reasonable chance that we will also be killed tonight," he said.
Katzir, 47, also said the bombings "endanger our lives" and urged Israeli leaders to make a prisoner exchange deal.
"We don't want to die in Gaza," he said. "We want them to do whatever it takes to bring us home."
It is unclear when the video was recorded and if the men were told what to say.
The hostages' families gave ABC News permission to use stills from the video.
The Israel Defense Forces said it’s found about 1,500 tunnel shafts and underground passages in Gaza since the start of the war.
The IDF -- which has consistently accused Hamas of using civilians in Gaza as human shields -- said most tunnels were under schools, hospitals, mosques, United Nations facilities and civilian institutions.
-ABC News’ Dana Savir
