It’s only three weeks into a fragile ceasefire, and Israel and Hamas are each ratcheting up allegations that the other party has violated the deal.

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 said on Tuesday that if Hamas did not release Israeli hostages by noon on Saturday a fragile ceasefire in Gaza would end and the Israeli army would resume its offensive in the Palestinian enclave until the militant group is defeated.