During an interview Thursday on ABC News' "Good Morning America," U.S. National Security Council spokesperson John Kirby was asked whether Israel's raid on the largest hospital in the Gaza Strip was justified.

"Well, the raid, they're going in on the ground here. They're not bombing it," Kirby said. "They're going after the Hamas leadership that is there. This presents a real dilemma for them."

"Hamas is using that hospital as a command and control mode and as a way to store weapons, and even house their fighters. Israel has to do something about that threat," he continued. "But they also have an added burden of protecting the civilians, the medical staff, the doctors and the patients that are at that hospital. And they are trying hard to strike that balance."

The IDF alleges that Hamas has placed its command centers under Al-Shifa and other hospitals in Gaza and is deliberately sheltering behind Palestinian civilians -- claims that the militant group denies.

Kirby told a press gaggle on Tuesday that the U.S. has intelligence that Hamas has used Gaza's hospitals, including Al-Shifa, to support its military operations and hold hostages.

-ABC News' Morgan Winsor

Israeli ground troops continued to carry out a raid on the largest hospital in the Gaza Strip for a second day.

A spokesperson for the Israel Defense Forces told ABC News that, as of 1 p.m. local time on Thursday, soldiers were still inside Al-Shifa Hospital in Gaza City, some 34 hours after launching the raid.

The IDF spokesperson also confirmed that they found explosives inside the medical complex.

The IDF alleges that Hamas has placed its command centers under Al-Shifa and other hospitals in Gaza and is deliberately sheltering behind Palestinian civilians -- claims that the militant group denies.

-ABC News' Dana Savir and Morgan Winsor

Negotiations are progressing towards a U.S. and Qatari-brokered hostage release deal between Israel and Hamas, according to multiple officials in the U.S. and Israel.

The potential deal could see Hamas free dozens of Israeli hostages taken on Oct. 7 in exchange for Israel's release of jailed Palestinians and occur during a multi-day cease-fire in Gaza, the officials said.

The contours of that deal are still being worked out, including how many Israeli hostages would be released and how long a cease-fire would last.

Multiple officials in the U.S. and Israel told ABC News that the current figure is at least 50 Israeli hostages -- women, children and the elderly -- would be released, though the exact number is not yet final. This would likely take place in batches, with hostages released in exchange for a yet unspecified number of Palestinian women and minors held in Israeli jails, the officials said.

The cease-fire could last between three and seven days though the length is being negotiated and remains a sticking point, the officials said.

There would be other Israeli concessions as well, potentially including the delivery of fuel into Gaza, according to the officials.

Two U.S. officials told ABC News that an agreement seems to be within reach, but that multiple similar proposals have fallen apart just before reaching the finish line in recent weeks.

-ABC News' Matt Gutman, Jordana Miller and Shannon K. Crawford

A fuel truck crossed the Rafah border crossing from Egypt into Gaza on Wednesday, marking the first time fuel entered Gaza since Oct. 7, a spokesman for the Palestinian Crossings Authority said, according to The Associated Press.

Fuel has been drying up in Gaza as the war continued.

The United Nations Relief and Works Agency for Palestine said their trucks -- which deliver aid from Egypt to Gaza -- ran out of fuel Tuesday.

In hospitals, a lack of fuel has prevented doctors for running incubators for babies.

And without fuel, many residents of Gaza have been trapped, unable to drive south toward the Egyptian border.

Patients and doctors evacuated the Al-Shifa hospital on Saturday, after the Hamas-run Gaza Health Ministry claimed Israel forced them to leave. The IDF released a statement denying it ordered the evacuation, but in a Friday briefing another spokesperson said the IDF was urging anyone left in Al-Shifa hospital to leave and that it hoped it would take place in the "next few hours."

Doctors described their exodus from the hospital to ABC News, with Dr. Ahmed Mokhallalati -- who is still in the hospital -- saying "all critical ICU patients have died. The situation is terrifying."

"Today early in morning people were forcefully evacuated from the hospital, with absolutely no plan of evacuation of the patients and the medical staff. Most of the civilians together with most of the staff left the hospital," Mokhallalati said.

Mokhallalati said there are around 300 patients, who cannot move, and less than 50 medical staff still in the hospital.

"There are still 33 premature babies in the hospital -- one baby died yesterday, and two babies were taken by their parents to evacuate with them. There is only one neonatologist and one nurse with them," he added. The Israelis have provided only three transport incubators for 33 babies. So, if they tell us 'you have to evacuate now,' I have no idea how to evacuate them."

Dr. Adnan Al-Barash, head of the orthopedic department at Al-Shifa Hospital, told ABC News that the "Israeli army forced us to leave the hospital at gunpoint."

"The path for us to walk was set out among the tanks, we had elderly, wounded… The scene was very tragic and sad," Al-Barash said.

"We went out between the tanks, and we could not get the wounded out on the broken roads and we could not move wheelchairs for the wounded," he added.

-ABC News' Dragana Jovanovic and Zoe Magee