Israel-Gaza updates: Protest erupts in Tel Aviv over cease-fire, hostage deal

Chairman of the Joint Chiefs of Staff Gen. CQ Brown, Jr. has completed a visit to Israel amid intensifying fighting across the Lebanese border and continued uncertainty about a potential Iranian attack on Israel.

Brown met with Israeli Defense Minister Yoav Gallant and Israeli Chief of the General Staff Lt. Gen. Herzi Halevi in Tel Aviv on Monday. The officials discussed Hezbollah’s weekend rocket and drone attack and the “need to de-escalate tensions to avoid a broader conflict,” per a Pentagon readout.

Hezbollah launched its attack in retaliation for Israel's killing of Fouad Shukr in Beirut last month.

Brown told Reuters during his return trip to the U.S. that Iran may still be preparing a response to the assassination of Hamas leader Ismail Haniyeh in Tehran last month, an operation Iran has blamed on Israel.

“How Iran responds will dictate how Israel responds, which will dictate whether there is going to be a broader conflict or not,” Brown said, adding he believed Iranian leaders “want to do something that sends a message but they also, I think … don't want to do something that's going to create a broader conflict.”

-ABC News’ Luis Martinez

Cease-fire talks are now moving forward at a working group level in Cairo over the next few days to hammer out specifics, according to National Security Communications Adviser John Kirby.

This weekend's strikes by Israel and Hezbollah have "not affected the actual work on the ground by the teams trying to get this cease-fire deal in place," Kirby told reporters Monday.

Kirby also rejected any suggestion that talks broke down this weekend, instead saying they were "constructive" enough to work on "finer details" at lower levels.

"There was no breakdown," he said. "They made enough progress that they were willing to, or needed to transition to a working group level so you didn't need the mediators all there and the leadership there."

Brett McGurk, a top senior adviser on the Middle East at the White House, stayed in Cairo an extra day to kick off the meetings and is still there, Kirby said, adding that all parties are being represented in these discussions.

"One issue that will be for the working groups to flesh out is the exchange of hostages and prisoners that Israel's holding -- what that exchange looks like, how many, some of the details of exactly who will be released on either side and at what pace, those kinds of things," Kirby said.

-ABC News' Justin Gomez

Al-Aqsa Hospital in Deir al Balah is still operating, despite new temporary evacuation orders from Israeli forces to leave the surrounding area near the hospital.

Out of the 650 patients in Al-Aqsa Hospital, only 100 remain in the hospital that are being treated, the Hamas-run Gaza Ministry of Health said.

The Israel Defense Forces acknowledged they have been "operating in recent days in the Deir al Balah area," but they said the evacuation orders did not include "the hospitals and medical facilities in the area," in response to an inquiry from ABC News.

Three out of 18 water wells are still functioning in Deir al Balah due to "ongoing military operations," the U.N. Agency for Palestinian Refugees said in a post Monday.

-ABC News' Diaa Ostaz and Jordana Miller

The World Food Programme, the U.N.'s worldwide food assistance program, is being "severely hampered" by the "intensifying conflict" in Gaza.

The agency said border crossings have been limited and roads in Gaza have become so unusable that urgent repairs are needed in order to transport basic needs, like food and medicine.

"Transporting food, water, medicine and hygiene equipment is critical for the survival of communities in Gaza today and will be needed for months to come," Antoine Renard, the country director for Gaza, said in a statement. "Roads are part of this lifeline."