The IDF names two of the deceased hostages as Bipin Joshi and Guy Illouz, but is yet to name the other two. Meanwhile, the World Health Organization says it's scaling up operations in Gaza.

The tenuous ceasefire in the two-year Israel-Hamas war is holding even as complex issues remain ahead, a day after widespread jubilation over the return to Israel of the last 20 living hostages held in Gaza and the release of hundreds of Palestinian prisoners in exchange.

The International Committee of the Red Cross said on Tuesday it will take time to hand over the remains of hostages and detainees killed in the Israel-Hamas war, calling it a "massive challenge" given the difficulties of finding bodies amid Gaza's rubble.

The release of hostages in Gaza following a ceasefire marks a major diplomatic development in the Middle East.

Former President Bill Clinton and Senate minority leader Chuck Schumer praised President Donald Trump on Monday for the Gaza cease-fire and Israeli hostage release.

The faces of the hostages being held in Gaza stare down from every street corner in Israel on posters now sun-faded and ripped.