Hamas has released the names of three Israeli men it said it would free from Gaza on Saturday, in what will be the fifth round of exchanges under the ongoing ceasefire.

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.

Hamas began the process of freeing three more Israeli hostages and five Thai captives. Israel was expected to release another 110 Palestinian prisoners.