Sources say there are 'problems' with Monday's hostage list
Discussions are being held on a list that was received overnight regarding the final group of hostages who are expected to be released by Hamas in the Gaza Strip on Monday, according to the Israeli Prime Minister’s Office.
The office said in a statement on Monday morning that the list "is now being evaluated in Israel" and "additional information will be issued when possible."
Sources told ABC News that there are "problems" with the current list for Monday.
Monday's prisoner swap between Hamas and Israel -- the fourth round amid a four-day cease-fire -- is expected to take place between 4 and 6 p.m. local time.
-ABC News' Jordana Miller, Dana Savir and Morgan Winsor