The Palestinian group Hamas signalled on Thursday that a crisis threatening to unravel the Gaza ceasefire deal could be avoided despite uncertainty over the number of prisoners due to be released on Saturday and disagreements over aid supplies.

The 42-day ceasefire has appeared close to failure this week amid accusations on both sides of violations to the agreement sealed last month with the help of Egyptian and Qatari mediators and US support.

Hamas said it did not want the deal to collapse, though it rejected what it called the “language of threats and intimidation” from Israeli Prime Minister Benjamin Netanyahu and U.S. President Donald Trump.

They have said the ceasefire should be cancelled if the Israeli prisoners are not released.

“Accordingly, Hamas reaffirms its commitment to implementing the agreement as signed, including the exchange of prisoners according to the specified timeline,” Hamas said in a statement.

Hamas, whose Gaza chief leader Khalil Al-Hayya is visiting Cairo for talks with Egyptian security officials, also said both Egyptian and Qatari mediators would press on with efforts “to remove obstacles and close gaps”.

This week Hamas accused Israel of failing to respect stipulations calling for a massive increase in aid deliveries and said it would not hand over three prisoners due to be released on Saturday until the issue was resolved.

In response, Netanyahu ordered reserves to be called up and threatened to resume combat operations that have been paused for almost a month unless the prisoners were returned.

Israeli minister Avi Dichter, a member of Netanyahu’s security cabinet, told Israeli public radio on Thursday that he did not believe Hamas would be able to get out of the agreement.

“There’s a deal, they won’t be able to give anything less than what is in the deal,” he said. “I don’t believe that Hamas can behave otherwise.”

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Egyptian security sources said they expected heavy construction equipment to enter on Thursday and if that happened then Hamas would release prisoners on Saturday.

The standoff between Israel and Hamas has threatened to reignite their conflict, which has devastated Gaza and taken the Middle East to the brink of a wider regional war.

Egyptian and Qatari officials have been working to avoid a breakdown and a Palestinian official close to the mediation effort said both sides had agreed to go ahead with the ceasefire and the exchange of Israeli prisoners for Palestinian prisoners.