A Hamas official said on Sunday the group's delegation departed Cairo after meeting with Egyptian and Qatari mediators trying to negotiate a ceasefire in the ongoing war in the Gaza Strip.

"The Hamas delegation left Cairo tonight, after meeting with Egyptian and Qatari mediators who briefed them on the results of the latest negotiations," Izzat al-Rishq, a leading Hamas member said in a statement.

The Hamas delegation arrived in Cairo on Saturday to follow up on the results of Gaza war ceasefire negotiations taking place in the Egyptian capital.

In a press statement, Hamas said that its delegation was in Cairo, at the invitation of mediators from Egypt and Qatar, to listen to the results of the negotiations happening in the Egyptian capital, he explained.

The group added that it was prepared to carry out the terms agreed upon on 2 July, as outlined in a declaration by US President Joe Biden and a UN Security Council resolution.

Meanwhile, Israeli journalist Barak Ravid reported also Sunday evening that the Israeli negotiating team for talks on the hostage deal has returned to Israel from Cairo.

The Israeli delegation included Mossad chief David Barnea and Shin Bet director Ronen Bar, according to an Israeli official who spoke with The Times of Israel.

Egypt, Qatar and the United States have for months tried to reach a deal to end more than 10 months of Israeli war on the Gaza Strip.

On Friday, the White House said CIA chief William Burns was among US officials taking part in the discussions in Cairo, joining the heads of Israel's spy agency and security service.

"Washington is discussing with mediators' new proposals to bridge the gap between Israel and Hamas and for mechanisms to implement" a ceasefire plan.

Israel's insistence on keeping troops on the 14-kilometre Philadelphi corridor along the Egypt-Gaza border has emerged as a key sticking point.

Egypt has reiterated its insistence on a complete Israeli withdrawal from the Philadelphi corridor and the Rafah border crossing.

On Thursday, the Wall Street Journal reported that Egypt has also rejected Israeli and American proposals to build Israeli watchtowers along the Philadelphi corridor.