A dispute over humanitarian aid has led to concerns that the cease-fire could falter before the remaining hostages are released.

The Hamas announcement that it will delay the next planned release of Israeli hostages from Gaza has threatened a fragile truce that’s seen as having the potential to wind down 16 months of war.

Israeli Prime Minister Benjamin Netanyahu has warned Hamas that if the rest of the hostages are not released by Saturday at noon, the "cease-fire will be terminated" and Hamas will be "decisively defeated.