Egypt’s chief diplomat on Thursday called on Israel and Hamas to implement a Gaza ceasefire plan “without any delay,” raising pressure on Israeli Prime Minister Benjamin Netanyahu to accept the deal.

Israeli Prime Minister Benjamin Netanyahu has accused Hamas of backing out of a cease-fire deal to release hostages and end the war in Gaza, which has raged for more than a year. An Israeli Cabinet vote on the cease-fire deal has been delayed indefinitely.

The dispute underscores the fragility of the deal as mediators worked to ensure that it would go into effect on schedule.