Hamas-led militants are set to free three more hostages, all Israeli civilian men, and Israel will release dozens of Palestinian prisoners as part of a fragile agreement that has paused the war in the Gaza Strip.

Hamas on Friday announced the names of three Israeli hostages to be released on Saturday in exchange for Palestinian prisoners after a delay that underlined the obstacles hanging over a fragile deal meant to end the war in Gaza.

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.