Captain Omer Neutra, 21, of New York, was killed in combat on October 7, 2023 and “his body has been held hostage in Gaza since then,” the Israel Defense Forces (IDF) announced on social media.

The American-Israeli served as a tank platoon leader in the Armored Corps’ 77th Battalion, 7th Brigade, the IDF said Monday.

“May his memory be a blessing,” reads a post to X.

According to ABC 7 New York, Neutra was from Long Island. The media reported that he was killed during the Hamas attack on the Nova Music Festival in Israel.

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Omer Neutra, a 21-year-old American-Israeli who served as a platoon leader in the armored corps, was confirmed dead by Israeli forces on Monday. The IDF said he died on October 7. (Israeli Defense Forces/X)

Prior to the IDF announcement, Neutra was believed to be alive and being held hostage.

Because Neutra’s body is being held hostage, he is believed to be one of seven American hostages held in Gaza. Their families again sat at a Thanksgiving dinner with one empty seat on Thursday after pushing for their release to be prioritized.

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Omer Neutra, an American-Israeli, was serving in the IDF when he was believed to have been captured by Hamas on October 7, 2023. (Orna & Ronen Neutra)

Ceasefire negotiations have all but collapsed as Israel’s military campaign to defeat Hamas continues.

Many are holding out hope that even if the Biden administration fails to secure the release of the hostages before he leaves office in January, the new Trump administration could bring about a change in negotiations and secure the release of the hostages.

Omer Neutra is an American citizen whose body is being held captive by Hamas. (Fox News Digital)

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President-elect Trump said on the campaign trail: “We want our hostages back, and they better be back before I take office or you’re going to pay a very high price.”

Other American hostages still held in Gaza include: Edan Alexander, Sagui Dekel-Chen, Gadi Haggai, Judi Weinstein Haggai And Keith Siegel.

Fox News’ Caitlin McFall and Ben Evansky contributed to this report.