It is believed that at least two of the six American hostages still held in Gaza are alive — Sagui Dekel-Chen, 35, who grew up in Bloomfield, Connecticut, and Edan Alexander, 19, from Tenafly, New Jersey. Four other Americans are believed to have been killed in captivity.

Keith Siegel, a 65-year-old citizen of Israel and the United States, and two other male hostages were released Saturday as part of the first phase of the Gaza ceasefire deal.