The Israeli government must still formally approve the deal, which calls for Israel’s withdrawal from some areas of Gaza and the return of hostages taken by Hamas.

Israeli Prime Minister Benjamin Netanyahu’s office alleged that Hamas had backed out on parts of a Gaza ceasefire and hostage deal agreed Wednesday, potentially delaying a truce between the two sides that was set to go into effect on Sunday—a day before President-elect Donald Trump takes office.

Israel intensified strikes on Gaza hours after a ceasefire and hostage release deal was announced, residents and authorities in the Palestinian enclave said, as mediators sought to quell fighting ahead of the truce's start on Sunday.