Negotiations on consolidating the U.S.-backed truce in the war in Gaza are at a “critical” moment, Qatari Prime Minister Sheikh Mohammed bin Abdulrahman al-Thani said on Saturday.

Mediators are working to force the next phase of the ceasefire forward, al-Thani, whose country has been a key mediator in the war, said during a panel discussion at the Doha Forum conference in Qatar.

Violence has subsided but not stopped since the Gaza truce took effect on October 10.

“We are at a critical moment. It’s not yet there. So what we have just done is a pause,” al-Thani said.

“We cannot consider it yet a ceasefire. A ceasefire cannot be completed unless there is a full withdrawal of the Israeli forces – (until) there is stability back in Gaza, people can go in and out – which is not the case today.”

Talks on the next stages of U.S. President Donald Trump’s plan to end the two-year war in the Palestinian enclave have been continuing.

The plan calls for an interim technocratic Palestinian government in Gaza, overseen by an international “board of peace” and backed by an international security force. Agreeing on the makeup and mandate of that force has been particularly challenging.

On Thursday, an Israeli delegation held talks in Cairo with mediators on the return of the last hostage held in Gaza, which would complete an initial part of Trump’s plan.

Since the truce started, Hamas has returned all 20 living hostages and 27 bodies in exchange for around 2,000 Palestinian detainees and convicted prisoners.

Although fighting has diminished, Israel has continued to attack Gaza and demolish what it says is Hamas infrastructure. Hamas and Israel have traded blame for violations.

Palestinian local health authorities said on Saturday that Israeli fire killed five people in Beit Lahiya and Jabalia in the northern Gaza Strip on Saturday.

The Israeli military said that in two separate incidents on Saturday, forces deployed in northern Gaza behind the so-called yellow line of withdrawal agreed in the ceasefire had fired on Palestinian militants who crossed the line, killing three.

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(Reporting by Andrew Mills; Additional reporting by Nidal al-Mughrabi in Gaza and Maayan Lubell in Jerusalem; Writing by Jaidaa Taha; Editing by Aidan Lewis)