Eight Israeli Defense Forces soldiers were killed in an "incident" in southern Gaza, according to the IDF.

Earlier Saturday, Hamas released a statement saying an operation targeting Israeli military vehicles in Rafah killed several IDF soldiers. The IDF has not commented on the nature of the soldiers' deaths.

-ABC News' Nasser Atta and Yael Benaya

Andrey Kozlov, one of the four Israeli hostages rescued from Gaza on Saturday, is urging Israelis to gather Saturday at "Hostage Square" in Tel Aviv in support of the hostages and their families.

"I'm already in Israel at home. But a lot of hostages are still there in Gaza," Kozlov, 27, said in a video message. "I saw a lot of rallies on Saturday, and it gave me a lot of hope."

Kozlov’s girlfriend told ABC News this week that Kozlov was psychologically tortured while in captivity, and she said that he told her the moment he realized the Israeli soldiers were there to save him, he felt he was reborn.

The situation on Israel’s northern border with Lebanon remains tense.

Two women were killed and 20 people were injured in the village of Janata in southern Lebanon after an airstrike on a house late Thursday night, the Lebanese Civil Defense said in a statement.

Since Friday morning, at least 50 projectiles were launched from Lebanon toward Israel, the Israeli Defense Forces said.

"A number of the projectiles were intercepted," the IDF said.

"As a result of the launches, a fire broke out in the area of Kfar Szold," the IDF added.

Hezbollah issued statements taking responsibility for nine attacks on Israeli sites Friday.

-ABC News’ Ellie Kaufman, Nasser Atta and Jordana Miller

Israeli forces returned to Jenin, in the West Bank, on Thursday to conduct what they called a "13-hour counter-terror operation" that left three killed, two detained and multiple injured, according to the local Palestinian Red Crescent Society.

The youngest person killed was 19 and the oldest 70, according to the PRCS report.

Bulldozers were filmed in central Jenin, where UNRWA said there was heavy damage, as well as in the town of Qabatiya, south of Jenin, where the Israeli forces say they conducted a "pressure cooker" procedure on a house where they say two senior terrorists were staying.

Two suspects were killed, according to the IDF statement. The PRCS reports three killed and multiple people injured by shrapnel and beating.

The IDF reported two died in the operation.

-ABC News' Camilla Alcini

United Nation human rights officials said they were "profoundly shocked" by the Israeli operation that freed four hostages in central Gaza over the weekend, adding that actions by both Israel and Hamas "may amount to war crimes."

"The manner in which the raid was conducted in such a densely populated area seriously calls into question whether the principles of distinction, proportionality and precaution -- as set out under the laws of war -- were respected by the Israeli forces," the U.N. Office of the High Commissioner of Human Rights, or OHCHR, said in a statement on Tuesday.

The rescue operation in a refugee camp in Nuseirat killed as many as 274 people, the Hamas-run Gaza Health Ministry said Monday. Hundreds of others were injured, the ministry said. Many of those injured and killed were Palestinian civilians, OHCHR said on Tuesday.

But OHCHR also said it was "deeply distressed" about the way the militant groups continue to hold hostages, "most of them civilians, which is prohibited by international law."

By holding those hostages in densely populated areas, Hamas militants are putting civilians and the hostages at risk, the agency said.

"All these actions, by both parties, may amount to war crimes," OHCHR said.

-ABC News' Joe Simonetti and Kevin Shalvey