Hundreds of mourners marched at the beginning of a funeral procession for Hersh Goldberg-Polin alongside family members of the slain hostage.

A large crowd gathered for the funeral of Israeli-American Hersh Goldberg-Polin, whose body was discovered along with five other hostages in Gaza last week.

Some of those waiting outside Har Hamenuchot cemetery, Jerusalem's largest, waved Israeli flags and those of Hapoel Tel Aviv Football Club, of which Hersh was a fan.

Israeli President Isaac Herzog is expected to deliver a eulogy after an invitation from his family, his spokesperson said.

Hersh's parents, Jon and Rachel, led a tireless and very public campaign to free their son and other hostages.

Foreign Minister Israel Katz has vowed that Israel will respond "with full force" after the Israeli army recovered the bodies of six hostages in Gaza last week.

"The Hamas terror organization brutally executed six hostages to instill fear and attempt to fracture Israeli society," Katz wrote in a post on X this morning. "Israel will respond with full force to this heinous crime. Hamas is responsible and will pay the full price."

The Israeli Health Ministry said yesterday that the six hostages were killed by Hamas "in a number of short-range shots" just days before their bodies were found. Hamas has blamed Israeli Prime Minister Benjamin Netanyahu and the U.S. for the hostages' deaths, alleging without evidence that the hostages were killed by the Israeli army’s bullets.

The parents of American-Israeli hostage Omer Neutra, who remains held in Gaza, told NBC's "TODAY" this morning that the news of the deaths of six hostages over the weekend came as a “devastating” blow.

Ronen and Orna Neutra said their son is almost the same age as Hersh Goldberg-Polin, whose body was among those retrieved by Israeli forces and whose parents led a tireless campaign to free their son and other hostages.

“To have this happen now, it shouldn’t have happened,” Orna Neutra said, adding that an earlier deal could have seen Hersh released as his arm was severed during the Oct. 7 attack, and he could have qualified for the next release of hostages.

“I think it’s time for action,” she added. “It’s been time for action for a long time now, and we’re just seeing the results of inactivity.”

A Tel Aviv court issued an injunction this afternoon to end the nationwide strike hours earlier than organizers planned.

"The court accepted our position and determined that the Histadrut’s strike was political and illegal," Finance Minister Bezalel Smotrich wrote on X, referring to the country's largest labor union.

Israeli media reported that the court ordered the strike to end at 2:30 p.m. local time (7:30 a.m. ET).

Israeli opposition leader Yair Lapid attends a rally in Tel Aviv today, calling for the release of hostages held in Gaza by Hamas since Oct. 7.

Around 87,000 children received a lifesaving polio vaccine on the first day of a mass effort to stop the spread of the virus inside Gaza, according to numbers provided by the United Nations agency for Palestinian refugees, UNRWA.

The agency said it was administering the vaccine in the middle area of the Gaza Strip. "We are doing everything possible to help all children under 10 years of age receive the vaccination," it said in a post on X.

The Gaza Health Ministry also said last night that at least 72,611 children had been vaccinated on the first day.

Israel and Hamas have agreed to three separate, zoned three-day pauses in fighting in Gaza to allow for the vaccination of some 640,000 children, the World Health Organization said last week.

It came after a baby was partially paralyzed by the type 2 polio virus last month in the first such case in the territory in 25 years.

Tens of thousands of people took to the streets last night and more protests were planned today alongside the general strike, as frustration builds with the failure by the Israeli government to reach a cease-fire deal, after the deaths of six hostages in captivity in Gaza.

In what appears to be the largest public outpouring of anger and grief in Israel the 11 months of war, demonstrations took place in Jerusalem, Tel Aviv and other cities across the country.

In Jerusalem, protesters blocked streets and demonstrated outside the prime minister’s residence. Aerial footage showed Tel Aviv’s main highway filled with protesters holding flags with pictures of the slain hostages.

The families of the hostages urged the general public to join more protests across Israel today "calling for an immediate deal."

Israeli Finance Minister Bezalel Smotrich has demanded an injunction to stop the nationwide strike today that is to pressure the Israeli government into reaching a cease-fire deal to return hostages remaining in Gaza.

In a post on X, Smotrich said he had approached Attorney General Gali Baharav-Miara, arguing that the "political strike" had no legal standing.

Histadrut, Israel’s biggest trade union, ordered the nationwide strike, with the action expected to last at least one day and shut down much of the country’s economy.

Smotrich said a directive has been issued that any employees who do not show up for work will not receive payment.

"We will not allow the leaders of the Histadrut to turn the country upside down and use workers as a weapon to promote their political views," Smotrich wrote.