Israeli forces recovered the body of Oron Shaul, an Israel Defense Forces soldier who was killed in 2014, Prime Minister Benjamin Netanyahu and the IDF announced Monday.

Shaul was killed during a battle in Gaza on July 30, 2014, and his body had been held by Hamas for the past 10 years, the IDF said.

"The recovery of Staff Sergeant, Oron Shaul’s body, was made possible due to a decade-long ongoing intelligence effort, which intensified during the war," the IDF wrote in a statement about the operation on Monday.

Netanyahu spoke with Oron Shaul's mother, Zehava Shaul, after the operation was successfully completed, a statement from his office said.

-ABC News' Ellie Kaufman and Jordan Miller

Both Israel and Hamas have confirmed the next hostage release will take place on Saturday.

A senior Israeli official confirmed the deal must take place on Jan. 25, as outlined in the ceasefire agreement. Hamas confirmed the date, saying "the second batch of prisoner exchange will take place on the scheduled date."

Three hostages, all Israeli women, were released on Sunday, while 90 Palestinian prisoners were released from Israel in exchange.

Yemen's Houthi rebels announced that they will limit their attacks in the Red Sea to only Israel-affiliated ships, signaling a temporary easing of their broader assault on commercial vessels.

The decision coincided with the ceasefire and hostage-release deal agreed between Israel and Hamas that went into effect on Sunday.

The announcement was made via an email sent to shipping companies by the Houthi Humanitarian Operations Coordination Center, the Associated Press reported.

Attacks on Israeli-linked vessels will end "upon the full implementation of all phases" of the ceasefire, the Houthis said, adding that attacks on U.S.- or U.K.-linked shipping may resume if the two nations continue airstrikes in Yemen.

The Houthis have targeted over 100 merchant vessels with missiles and drones since the Israel-Hamas war in the Gaza Strip started in October 2023, significantly affecting global shipping, particularly through Egypt's Suez Canal.

The Houthis have also attacked American and allied military shipping in the region, plus launched drone and ballistic missile strikes into Israel.

-ABC News' Somayeh Malekian

The Palestinian Civil Defense in Gaza said there could be as many as 10,000 bodies buried under rubble all across the strip, as many displaced Gazans try to return to their homes under a nascent ceasefire agreement.

The Civil Defense said in a post to Telegram that 10,000 missing people are believed to be "under the rubble of destroyed homes, buildings and facilities." They are not counted in the 38,300 fatalities listed by the Civil Defense since Oct. 7, 2023.

The Gaza Ministry of Health -- which has separately tracked deaths during the conflict -- said on Sunday that 46,913 people had been killed in the Hamas-run territory during the war with Israel.

The Civil Defense said Israeli forces prevented its crews from accessing large areas of the strip during the fighting, "where there are hundreds of bodies" that have not yet been recovered.

The Civil Defense called for the entry of foreign rescue workers "to support us in carrying out our duty to deal with the catastrophic reality left behind by the war, which exceeds the capacity of the civil defense apparatus in the Gaza Strip."

The organization called on Gazans to assist rescuers "with all necessary capabilities, including rescue, firefighting, and ambulance vehicles and equipment, as well as heavy machinery and equipment that will help us retrieve the bodies of martyrs from under the rubble of thousands of destroyed buildings and homes."