A young couple from southern Gaza planned to marry on Oct. 8 -- but the Israel-Hamas war changed all that.

The house they were going to live in was destroyed by Israeli bombs.

The couple -- not yet married -- spoke to ABC News as they sifted through the rubble, trying to salvage whatever they could.

"How do I feel? Sad. I wanted to be like any bride, to have a house," Heba Abu Taima told ABC News. "Everything was beautiful before the 7th of October. After the 7th of October, everything ended."

"All my dreams were shattered," she continued. "Everything in the house is gone, the house in which we planned to have a sweet and happy life is gone."

"I dreamed of beautiful things, for example, children," said her fiancé, Saif Abu Taima. "I used to say, 'Boy,' and she used to say, 'No, girl.' And we also used to go out and [I'd] tell her, 'We will live a beautiful life and achieve our beautiful dream.'"

She added, "We desperately want to live in safety like other countries. To have a good life, to live freely and in peace."

-ABC News' Sami Zayara

Tatiana Valovaya, director-general of the United Nations at Geneva, is calling for an "irreversible" move toward a two-state solution.

"We must be united in demanding an end to the occupation and the blockade of Gaza," Valovaya said. "It is long past time to move in a determined, irreversible way towards a two-state solution, on the basis of United Nations resolutions and international law, with Israel and Palestine living side-by-side in peace and security, with Jerusalem as the capital of both states."

Hamas' military wing al-Qassam Brigades alleged Wednesday that three hostages have died as a result of the Israeli military's previous bombings in the Gaza Strip.

In a statement posted on a Telegram channel associated with the al-Qassam Brigades, the slain hostages were identified as Shiri Silverman Bibas, Kfir Bibas and Ariel Bibas. It was unclear when the trio had allegedly died and ABC News was unable to verify the claim.

Several members of the Bibas family, including 32-year-old Shiri, her 4-year-old son Ariel and her 10-month-old son Kfir, were kidnapped from their kibbutz in southern Israel during Hamas' attack on Oct. 7 and taken hostage to Gaza, according to relatives and Israeli authorities.

The Israel Defense Forces confirmed in a statement Wednesday that it is investigating the reports of their deaths.

"IDF representatives spoke with the Bibas family following the recent reports and are with them at this difficult time. The IDF is assessing the accuracy of the information," the IDF said. "Hamas is wholly responsible for the security of all hostages in the Gaza Strip. Hamas must be held accountable."

In a statement obtained by ABC News, the Bibas family said Wednesday that they are "updated on the latest Hamas publication."

"We are waiting for the news to be confirmed or hopefully refuted soon by military officials," the family added. "We thank the people of Israel for the warm embrace but ask to maintain our privacy at this complex time."

-ABC News' Ayat Al-Tawy, Anna Brund, Jordana Miller, Dana Savir and Morgan Winsor

Itai Pessach, director of Edmond and Lily Safra Children's Hospital at Sheba Medical Center, praised the newly released hostages who arrived at the hospital Tuesday, calling them "extraordinary women" who "endured the hardships of their captivity in a remarkable fashion."

"Some of them had complex underlying illnesses and some suffered injuries when they were abducted or during their time in captivity," Pessach said. "They will need further medical treatment and attention, but there's no immediate danger to any of them."

Twelve hostages were released on Tuesday in the most recent prisoner swap: 10 Israelis and two foreign nationals from Thailand. Nine of the Israelis were women. One was a 17-year-old girl, Maya, and her dog, Bella.

Pessach called Maya "a very brave young woman. "

"Bella also was examined last night by the veterinarian service of the Sheba Medical Center, and she's also fine, and she would stay with Maya for as long as she needs while they are still here," Pessach said.