The Palestinian Islamist group Hamas has handed over to mediators a list showing that 25 Israeli hostages are still alive, out of 33 scheduled for release, an official of the group told Reuters on Monday.

Hamas will release more Israeli hostages this week, officials said Monday, including Agam Berger, who was not released along with four of her colleagues on Saturday.

An agreement has been reached between Israel and Hamas that involves the release of additional hostages and the return of Palestinians to the northern part of the Gaza Strip.