Negotiators were trying to clinch agreement on Tuesday on the final details of a ceasefire in Gaza after marathon talks in Qatar, with mediators and the warring sides both saying a deal was closer than ever.

Negotiators said a deal between Israel and Hamas was closer than ever even as Israeli airstrikes on Gaza continued, killing at least 13.

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.