Israel-Gaza updates: Israel says ground operation underway in southern Gaza

Twelve hostages are back in Israeli territory in the latest exchange, according to the Israeli government.

The hostages include 10 Israelis and two foreign nationals, both from Thailand, officials said.

The Israeli citizens were identified as Tamar Metzger, 78; Ditza Hayman, 84; Norlin Babdila, 60; Ada Sagi, 75; Ophelia Edith Roitman, 77; Rimon Kirsht, 36; Merav Tal, 53; and the Leimberg family -- Gabriella Leimberg, 59, Mia Leimberg, 17, and Clara Marman, 63.

The IDF said the hostages were taken through Egypt before heading to a meeting point in Kerem Shalom, in Israel.

Five of the women -- Metzger, Hayman, Ada Sagi, Roitman and Tal -- were residents of Kibbutz Nir Oz, one of the communities hit hardest by Hamas' Oct. 7 attack.

"They were held captive, in harsh conditions and deprived of essential medical care. Two of the women released have been separated from their husbands, who remain in captivity," the kibbutz said in a statement. "The Nir Oz community is committed to support them, and their families, through the long recovery process ahead."

Thirty Palestinian prisoners were released in exchange for the hostages, according to Qatari officials.

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12 more hostages released after extended Israel-Hamas cease-fire

The hostages include 10 Israelis and two foreign nationals.

ABCNews.com

-ABC News' Will Gretsky

Abigail Idan, the 4-year-old American-Israeli hostage who was released by Hamas on Sunday, has been discharged from Schneider Children's Medical Center, hospital officials said.

"Since her arrival, the medical and psychosocial team at Schneider accorded her all-embracing medical and emotional care," officials said.

President Joe Biden said Monday that he "spoke with Abigail’s family following her release, and we are working closely with our Israeli partners to ensure she gets the care and support she needs as she begins to recover from this unspeakable trauma."

Hamas and the Israel Defense Forces have accused each other of violating the cease-fire agreement.

The IDF said three explosives have been detonated near Israeli troops in two different locations in the northern Gaza Strip, leaving Israeli soldiers "lightly injured."

The IDF said terrorists opened fire in one of the locations, and the Israeli army fired back in response.

Hamas said in a statement, "As a result of a clear violation by the enemy of the truce agreement in the northern Gaza Strip today, field friction occurred and our mujahideen dealt with this violation."

Hamas said it calls on the mediators to pressure Israel to adhere to the truce.

A Department of Defense plane carrying humanitarian aid -- including health supplies and winter clothes -- has arrived in Egypt to help the 1.8 million displaced residents in Gaza.

"More is on the way," USAID’s Bureau for Humanitarian Assistance said.