Netanyahu's office said Hamas had "reneged on parts of the agreement reached with the mediators and Israel in an effort to extort last-minute concessions."

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

Israel and Hamas have agreed a Gaza ceasefire and hostage deal following meetings with Qatar's prime minister, a source briefed on the talks has told the BBC. There was no confirmation from the Israeli government or Hamas, but a Hamas official earlier told the BBC it had approved a draft from Qatari, US and Egyptian mediators.