The deceased remains of an estimated 80 Palestinians -- which Israeli forces took from Gazan cemeteries to identify whether hostages had been buried there -- were returned by the Israel Defense Forces.

The bodies were decomposed beyond recognition, with Gazan officials saying between three and four bodies were in each bag. They will be reburied in a mass grave in Khan Younis.

A Gazan civil defense official on the ground said there is no data as to who these individuals were.

"I wished I could find him, to be at peace," Suwa Abu Rajilah, a mother who traveled to the site to see if her son, killed in the war, was there. "To say I buried him, but I couldn't find him."

-ABC News' Dia Ostaz

The U.N. has fired nine employees following a lengthy investigation into ties to the Oct. 7 attacks, the organization said.

The U.N.’s Office of Internal Oversight Services investigated 19 staff members with the UN Relief and Works Agency for Palestine Refugees in the Near East as part of the probe.

For nine of the staffers, evidence was found that they “may have been involved in the armed attacks,” the U.N. said.

“The employment of these individuals will be terminated in the interests of the Agency,” the organization said in a statement.

There was no evidence or insufficient evidence that the other investigated staffers had been involved, they added.

In another active day on the northern Israeli border, Hezbollah launched at least seven attacks on Monday.

The IDF said they “successfully intercepted” the projectiles, and no injuries were reported.

Hezbollah claimed responsibility for the attacks, saying in a statement they had launched them “in support of our steadfast Palestinian people in the Gaza Strip and in support of their valiant and honorable resistance.”

The IDF also said Monday that they had “identified a terrorist cell operating a drone in the area of Meiss El Jabal in southern Lebanon.”

“Shortly following the identification, the IAF struck and eliminated the terrorists,” they said.

An Israel Defense Forces (IDF) officer and a soldier were injured after an aerial attack in northern Israel's upper Galilee region near Ayelet HaShahar early Monday morning local time, the IDF said in a statement.

The aerial targets crossed from Lebanon, the IDF said.

"Israel Fire Services are currently operating to extinguish a fire that was ignited in the area as a result of the attack," the IDF said.