Hamas has released a video showing a 19-year-old Israeli captive as indirect talks between the group and Israel on a ceasefire and hostage-free deal resume in Qatar.
The footage shows Leary Albagh calling on the Israeli government to reach a deal.
She was taken hostage along with six other female conscripts at the Nahal Oz army base on the Gaza border during the October 2023 Hamas attack. Five of them remain in captivity.
The announcement of renewed talks came as Israel stepped up attacks on Gaza, with the Hamas-run Gaza health ministry saying on Sunday that 88 people had been killed in bombings in the past 24 hours.
A strike on a home in Gaza City on Saturday killed 11 people, including seven children, according to the Gaza Civil Defense Agency.
Images show residents searching the rubble for survivors and the bodies of the dead wrapped in shrouds.
“A huge explosion woke us up. Everything was shaking,” neighbor Ahmed Musa told AFP.
“It was home to children, women. There was no one wanted or who posed a threat.''
Israel's military said on Sunday it had struck more than 100 “terrorist targets” in the Gaza Strip in the past two days and had “eliminated dozens of Hamas terrorists”.
Reacting to the video showing their daughter, Liri Albagh's parents said it had torn their hearts apart and called on Prime Minister Benjamin Netanyahu to “make decisions as if your own children were there”.
The headquarters of the Hostage and Missing Families Forum, which represents the families of the hostages, said Leary's sign of life was “stern and irrefutable evidence of the urgency of returning all hostages home.”
Speaking to Lira Albagh's parents, Israeli President Isaac Herzog said his country's delegation would remain at the negotiating table until all the hostages were returned home.
Israeli officials have previously described the release of such videos by Hamas as psychological warfare.
Last month, a senior Palestinian official told the BBC as much negotiations to reach an agreement to cease fire and release hostages were almost completebut key issues still had to be overcome.
On Sunday, the Israeli military said it had intercepted a missile fired from Yemen, the latest in a series of similar attacks by the Iran-backed Houthi movement.
The Houthis said they fired a “hypersonic ballistic missile” at a power plant near the Israeli city of Haifa. The group claims it began attacking ships in the Red Sea and firing shells at Israel in response to Israeli military action in Gaza.
The current war began when Hamas attacked southern Israel on October 7, 2023, killing about 1,200 people and taking another 251 hostage.
Israel's military campaign to wipe out Hamas has killed more than 45,800 people, according to the territory's Hamas-run health ministry.
On Saturday, Gaza's health ministry said all three government hospitals in northern Gaza were completely out of service and had been “destroyed” by the Israeli military.
The Israeli army has imposed a blockade on parts of northern Gaza since October, with the UN saying the area was under “almost total siege” as Israeli forces severely restricted the access of aid supplies to an area where about 10,000 to 15,000 people remain .
Late last month, the Israeli military forced patients and medical staff out of Kamal Adwan Hospital in Beit Lahiya, claiming the facility was a “bastion of Hamas terrorists” and arrested the director of the hospital, Husam Abu Safiya.
He said he facilitated the transfer of some medical staff and patients to a nearby Indonesian hospital. But Gaza's health ministry said on Saturday that this hospital had also been decommissioned, along with the Beit Hanoun hospital.
The head of the World Health Organization, Dr. Tedros Adhanom Ghebreyesus, has again called for an end to attacks on hospitals and health professionals. “People in Gaza need access to health care,” he said.
Israel maintains that its forces are acting in accordance with international law and are not attacking civilians.
On Saturday, the Biden administration said it did plans to sell $8 billion (£6.4 billion) worth of arms to Israel.. The arms shipment, which needs approval by US House and Senate committees, includes missiles, shells and other munitions.
The move comes just over two weeks before Biden leaves office and Donald Trump takes over as president.
Washington has consistently rejected calls to end military aid to Israel over the number of civilians killed in Gaza.