Israel-Gaza updates: IDF says it exposed Hamas tunnel under Shifa Hospital

Negotiations for a hostage deal with Hamas are still ongoing, Israeli and U.S. sources told ABC News on Friday.

The potential agreement would involve Hamas releasing a certain number of hostages in exchange for a pause in fighting of some length of time in the Gaza Strip. But many of the details are still up in the air, according to U.S. sources.

The discussions are intense and remain fluid, according to an Israeli source. A disagreement has unfolded inside Israel’s defense cabinet with some ministers wanting to accept a deal to free about 50 women and children, while other ministers want all of the women and children as well as their family members released -- about 80 hostages in total, ABC News has learned.

Hamas, the militant group that rules Gaza, took more than 200 people hostage -- including Americans -- while carrying out an unprecedented attack on neighboring Israel on Oct. 7, according to Israeli and U.S. authorities.

-ABC News' Shannon Crawford and Matt Gutman

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

A spokesperson for the Israel Defense Forces told ABC News that, as of 1 p.m. local time on Friday, soldiers were still inside Al-Shifa Hospital in Gaza City, some 58 hours after launching the raid.

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. While searching an area of Al-Shifa Hospital this week, the IDF claimed to have found weapons and military equipment there, evidence it says proves Hamas is using the medical complex.

-ABC News' Joe Simonetti and Morgan Winsor

An additional 150,000 liters (40,000 gallons) of fuel will be delivered to the Gaza Strip on Friday, according to Egyptian media.

The fuel, which is earmarked for Gaza's hospitals, will enter the war-torn enclave from neighboring Egypt through the Egyptian-controlled Rafah border crossing, according to Egyptian state-allied television channel Al-Qahers News.

Al-Qahers News reported that "Egyptian pressure on all parties have succeeded in increasing the volume of aid" and "restoring the flow of fuel" to Gaza.

World Health Organization spokesperson Tarik Jašarević had said last month that 150,000 liters of fuel are required to offer basic services in Gaza's five main hospitals.

-ABC News' Ayat Al-Tawy

Many details remain up in the air regarding a deal to release the Hamas-held hostages in exchange for a pause in fighting in Gaza, according to U.S. officials.

One of the biggest sticking points is the number of hostages that will be released, according to an Israeli source.

Israel wants all the children, their mothers and all of their family members released, the source said. If you count just women and young children, that's about 50 hostages; if you add the family members, you get up to about 80 hostages, according to the source.

The discussions remain fluid, the source said.

It's too soon to tell if a deal will come together, but people participating in negotiations have yet to throw in the towel, the U.S. officials said.

Asked about the deal by "World News Tonight" anchor David Muir on Thursday, Secretary of State Antony Blinken said the U.S. is focused "intensely" on bringing hostages home.

"But having said that, honestly the less that I say the better at this moment because we don't want to jeopardize anything that we're doing to try to bring people home," he said. "I'm hopeful that we can bring people home."

6:27

Antony Blinken discusses latest in US role in Israel-Hamas conflict

David Muir speaks with the Secretary of State about the latest developments in the Israel-Hamas conflict, including intelligence over alleged Hamas activity in hospitals.

ABCNews.com

-ABC News' Shannon K. Crawford and Matt Gutman