When Hamas’ military wing, the Qassam Brigades, released its propaganda video of three Israeli hostages being released Sunday night, there was a striking detail.

Hamas said on Monday it would next release hostages held in Gaza on Saturday, after an official with the Palestinian militant group had said they would be released a day later than expected. Hamas is set to release the more than 90 hostages over the coming weeks as part of a complex ceasefire deal reached with Israel this month that could end the 15-month war in Gaza.

Romi Gonen, Emily Damari and Doron Steinbrecher were freed from Gaza. Thirty more hostages are set to be released in exchange for hundreds of Palestinian prisoners.