Yifat Zailer, a relative of one of the youngest Israeli hostages still being held in the Gaza Strip, said Tuesday that she has yet to hear whether her missing family members will be among those released by Hamas as part of the truce.

"The pain of not having them back yet is incredible. Tomorrow is the last day of this deal of cease-fire and we are very concerned," Zailer told ABC News' George Stephanopoulos in an interview on "Good Morning America."

Zailer said there has been no word from Israeli officials or others on whether her loved ones will be included in the prisoner swap with Hamas. The last thing she heard about her missing relatives was in a recent statement released by the Israel Defense Forces that stated there was a possibility of another Palestinian militant group holding them hostage.

"We are completely at loss," she said. "We don't know about their condition, we don't know if they're still alive even and it’s unbearable. They promised in this deal they signed, all the sides, that all mothers and children are supposed to be released."

"Prisoners are being released," she noted. "Where's my family?"

Four of Zailer's relatives -- her 32-year-old cousin Shiri Babas, Shiri's 34-year-old husband Yarden and the couple's children, 4-year-old Ariel and 10-month-old Kfir -- were kidnapped from their kibbutz in southern Israel during Hamas' attack on Oct. 7 and taken hostage to Gaza. Zailer said she doesn't understand why they -- especially the baby -- are still being held hostage and wondered whether it was for "leverage."

"Kfir is going to be 11 months [old] soon. He was kidnapped when he was 9 [months old]. We don't know how he's being fed," she told ABC News. "Why aren't they on any list? Every night we receive that phone call that they're not coming back tomorrow is torture -- it's psychological torture."

When asked whether she would support a deal for Israel to release all of its Palestinian prisoners in exchange for the hostages in Gaza, Zailer said: "That's a really hard question, but I must say I am."

"All those hostages are fathers, mothers, injured people and, of course, my family members as well among them," she continued. "So there's no price for our loved ones."

Zailer said she wants the world to know that her captive relatives "are and always were people of peace" and "innocent civilians."

"My uncle raised his daughter to love who's different from her," she added. "She's an incredible mother, her husband is an incredible father."

-ABC News' Morgan Winsor

The Palestinian Prisoners Society, a local nongovernmental rights group, said Tuesday that Israeli forces have detained 168 Palestinians in the Israeli-occupied West Bank since last Friday, when the truce with Hamas went into effect.

During that same period, 150 Palestinians have been released from Israeli jails as part of the cease-fire agreement, according to the Palestinian Prisoners Society.

-ABC News' Zoe Magee and Morgan Winsor

A U.S. official confirmed to ABC News on Tuesday that CIA Director Bill Burns is in Qatar's capital for meetings regarding the Israel-Hamas war that include discussions on hostages.

The CIA has not officially commented on the director's schedule.

Burns was previously in Doha for similar meetings earlier this month.

The United States, Qatar and Egypt have mediated the talks between Israel and Hamas.

-ABC News' Cindy Smith and Morgan Winsor

Israel is open to extending the cease-fire with Hamas even further, as long as the militant group can free at least 10 Israeli hostages per day, an Israeli political source told ABC News on Tuesday.

The source confirmed that talks are underway on the Israeli side to further extend the truce, which went into effect last Friday and was set to expire Tuesday but both sides agreed to extend it by two days.

-ABC News' Jordana Miller and Morgan Winsor

Muhammad Ibrahim Asfour was among the Gaza residents who returned home during the cease-fire to find destruction where homes used to be.

"I was shocked, and when I saw the house I started crying," Asfour told ABC News. "There were 50 people in the building here -- all of my brothers and father were living here."

"The situation here is more difficult than you can imagine," Abdelkader Darma told ABC News. "When I came home I was shocked."

"People do not know where to go," Darma said. "I and six other people slept on two mattresses and two pillows, which means you do not know how to sleep. They sleep three against three, and you find his feet in front of your face."

“I hope the truce will be extended and a solution will be found because it is enough. People are sleeping in the street," Darma said. "How can you bear it?"

-ABC News' Zoe Magee and Sami Zayara