Israel-Gaza live updates: Hamas publishes names of 20 living Israeli hostages to be released

In a televised address on the eve of the anticipated release of Israeli hostages held by Hamas, Israeli Prime Minister Netanyahu Sunday night said it was "an evening of tears, an evening of joy, because tomorrow, sons will return to their borders."

Netanyahu called the release "a historic event that is tinged with sadness over the release of murderers, and joy over the return of kidnapped people."

"I know that there are many differences among us. But on this day, and I hope that also in the period that is coming, we have every reason to put them aside," he further said.

While saying that Israel had achieved "victories that have astonished the entire world," Netanyahu added "the campaign is not over. There are still very big security challenges ahead of us," including the possibility of future attacks.

Expecting the initial care of the soon-to-be-released hostages to "be more complex" than that of those who were previously returned, the Israeli Ministry of Health has prepared a protocol for treating the 20 people expected to be returned from captivity.

"From a medical standpoint, the complexity of feeding the returnees has increased compared to previous cases, due to their two-year captivity and the risk of severe malnutrition and the development of refeeding syndrome," according to the Ministry of Health's protocol.

During their hospitalization, the freed hostages will be assigned medical teams that will include attending physicians, consulting physicians, nurses, social workers, psychiatrists, psychologists, dietitians and forensic physicians, according to the Ministry of Health. Those medical teams are expected to hold multidisciplinary discussions "to create a comprehensive professional clinical picture and to develop a personalized treatment plan," the Ministry of Health said.

"A psychiatric evaluation must be conducted, at minimum, within 24 hours of the released individual’s admission," according to the Ministry of Health.

Israeli Prime Minister Benjamin Netanyahu said on Sunday that his country was prepared to begin receiving hostages still held by Hamas.

"Israel is prepared and ready to immediately receive all of our hostages," he said, according to his office, during a conversation with Gal Hirsch, a retired Brigadier general who is serving as coordinator for the Hostages and the Missing.

The prime minister on Saturday toured a reception facility at Sheba Medical Center in Israel's Tel HaShomer, according to his office.

Families of hostages were informed that the process of releasing their loved ones will begin on Monday morning, according to a letter sent to the families provided to ABC News by a senior Israeli Official on Sunday.

"The preparations for the absorption of the living kidnapped in the Gaza Strip, in the Re'im camp, in the hospitals, and in general in the government systems have been completed," the letter reviewed by ABC News said.

It added, "The preparations for the absorption of the deceased kidnapped have been completed, and they will be transferred in a respectful manner, in accordance with the appropriate procedure, to the Institute of Forensic Medicine to carry out the identification process."

-ABC News’ Ian Pannell, Jordana Miller and Somayeh Malekian