Netanyahu reveals his plan for the "day after" the war in Gaza 2:20

(CNN) --

Negotiators have reached an "understanding" on the general contours of a possible deal to release hostages held by Hamas in exchange for a temporary ceasefire in Gaza, the security adviser told CNN on Sunday. White House National, Jake Sullivan.

An Israeli delegation, including Mossad Director David Barnea, joined talks with CIA Director Bill Burns and Egyptian and Qatari negotiators in Paris on Friday.

Qatar and Egypt serve as intermediaries between Hamas and Israel, which do not speak directly to each other.

Hamas was informed on Sunday afternoon about the Paris talks.

But a possible final agreement is still at least a few days away, as negotiators continue to finalize the details.

“Representatives from Israel, the United States, Egypt and Qatar met in Paris and reached an agreement among the four on what would be the basic contours of a hostage agreement for a temporary ceasefire.

“I'm not going to go into the details because it's still being negotiated in terms of working out the details,” Sullivan told CNN's Dana Bash on “State of the Union.”

“There will have to be indirect talks between Qatar and Egypt with Hamas because ultimately they will have to accept the release of the hostages.

That work is underway.

And we hope that in the next few days we can reach a point where there really is a firm and definitive agreement on this issue.

But we will have to wait and see,” he added.

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When Bash pressed him on his hopes for a possible deal, Sullivan declined to weigh in: “There's been a lot of back and forth.

So I am not going to make predictions nor am I going to put percentages of possibilities.”

Posters with portraits of Israeli hostages held in Gaza during a demonstration calling for their release in Tel Aviv on February 8.

Credit: Ahmad Gharabli/AFP/Getty Images

Speaking to CBS's Face the Nation on Sunday, Israeli Prime Minister Benjamin Netanyahu stressed that Israel wants to free the remaining hostages in Gaza and said, “We are all working on it.

We want it.

I love you".

He said Hamas' “crazy” demands were delaying the deal.

US “Concerns” over Gaza Post-War Plan

Negotiators will continue discussions on Monday in Doha, according to a diplomat and sources familiar with the talks.

Those conversations will be between labor-level officials to focus on solving technical problems, they say.

Discussions will include officials from the parties involved in the Paris talks: Qatar, Egypt, the United States and Israel.

On the American side, these will include CIA officials.

Despite the ongoing fighting in Gaza, positive signs are emerging from the talks.

Tzachi Hanegbi, Israel's National Security chief, told Israeli media on Saturday that he believed "it will be possible to move forward."

But a Hamas leader, Dr. Bassem Naim, told CNN on Sunday that he is “not aware” of any progress in negotiations between Israel and Hamas.

Regarding Netanyahu's recently released plan for what Gaza would look like postwar, Sullivan said he has "some concerns" based on what he has seen in the press, but he hopes to be briefed by his Israeli counterparts this Sunday.

"From what I've seen in the reports, I have some concerns," he told CNN.

Later, in an interview on Fox News Sunday, Sullivan also said: “I'm going to talk to my Israeli counterparts today to hear more because they've been in the press without coming to us to talk about all of this.

So I’ll wait and see.”

The Israeli leader has repeatedly said that the war in Gaza will continue until Israel destroys the Hamas leadership and rescues the hostages.

The Israel Defense Forces (IDF) announced Sunday that Israeli hostage Oz Daniel, 19, has become the latest hostage to be confirmed dead.

Daniel was among the hostages believed to be alive, so his death brings the number of hostages killed since October 7 to 30, out of the 130 hostages taken that day.

In November last year, Israel and Hamas agreed to the first decisive deal that secured the release of 105 hostages held by Hamas.

The agreement also included a four-day cessation of fighting, which was eventually extended.

CNN's Richard Allen Greene contributed to this report.

Israel and Hamas war