Israeli Prime Minister Benjamin Netanyahu’s office said Thursday his Cabinet won’t meet to approve the agreement for a ceasefire in the Gaza Strip and the release of dozens of hostages until Hamas backs down from what it called a “last minute crisis.

The deal, not yet formally announced, outlines a six-week initial ceasefire phase and includes the gradual withdrawal of Israeli forces from Gaza and release of hostages held by Hamas in exchange for Palestinian detainees held by Israel, an official briefed on the negotiations told Reuters.