Dozens of fighter jets attacked more than 70 targets in a neighborhood in the Gaza Strip, the Israel Defense Forces said.

Hamas allegedly had operations in the neighborhood and carried out activities against Israel, according to the IDF.

The IDF said it also attacked a military building that was allegedly used by the Islamic Jihad terrorist organization.

-ABC News' Ellie Kaufman

The World Health Organization repeated its call to end hostilities in the Israel-Gaza region and offered assistance to health officials in both countries.

Egyptian President Abdel Fattah El-Sisi agreed to a WHO request to facilitate the delivery of health and other humanitarian supplies from WHO to Gaza via the Rafah crossing, the organization said.

"In the Gaza Strip, hospitals are running on back-up generators with fuel likely to run out in the coming days. They have exhausted the supplies WHO pre-positioned before the escalation," the organization said in a statement. "The life-saving health response is now dependent on getting new supplies and fuel to health care facilities as fast as possible."

-ABC News' Youri Benadjaoud

Former Israeli Foreign Minister and former Knesset member Tzipi Livni spoke with ABC News Live about the recent Hamas attacks on Israel and argued the group is "not just an Israeli problem."

Livni said, "Hamas was always an obstacle to peace," and called on the entire international community to stand against them.

"They don't represent the Palestinian people," Livni said about Hamas. "They represent this extreme religious ideology that does not accept not only Israel, [but also] the U.S., or our liberal values, [and] democratic ideas."

She thanked President Joe Biden for his support of Israel shortly after he delivered remarks, and said that for Israelis listening it was "the first light in dark days."

-ABC News' Michelle Stoddart

The IDF said the first plane bringing U.S. ammunition landed in Israel Tuesday.

"We are grateful for the American backing and assistance to the IDF in particular, and to the State of Israel in general, during this challenging period," the IDF said in a statement.

-ABC News' Will Gretsky

In his first on-camera comments about Israel’s evacuation request for northern Gaza, Israeli Defense Minister Yoav Gallant urged Gaza residents to head south. He noted that Hamas will use them as "camouflage," “therefore we need to separate them."

"Those who want to save their life, please go south. We are going to destroy Hamas infrastructures, Hamas headquarters, Hamas military," he said.

Defense Secretary Lloyd Austin, who appeared at the press conference with Gallant, dodged ABC News' question about how Israel could end the Hamas terror threat without inevitably risking civilian lives. Austin called Israel's military "professional" and "disciplined."

Austin described how ISIS had also embedded themselves in civilian populations and how the anti-ISIS coalition "protected civilians and created corridors for humanitarian movement even in the midst of a pretty significant fight. So again, this is a professional force. It is well led, and I have every expectation that it will be disciplined."

Austin added, "I would tell you that in countering ISIS, I felt as if we were staring evil in the eye, it was truly evil. And what we've seen from Hamas, it takes that evil to another level."

-ABC News' Matt Seyler and Luis Martinez