The US on Tuesday again vetoed a draft UN Security Council resolution on the Israel-Hamas war, blocking a demand for an immediate humanitarian ceasefire.

Thirteen council members voted in favour of the Algerian-drafted text, while Britain abstained. It was the third such US veto since the start of the current fighting.

"A vote in favour of this draft resolution is support to the Palestinians right to life. Conversely, voting against it implies an endorsement of the brutal violence and collective punishment inflicted upon them," Algeria's UN ambassador Amar Bendjama said.

US ambassador to the UN Linda Thomas-Greenfield signalled on Saturday that the US would veto the draft resolution over concerns it could jeopardize talks between the US, Egypt, Israel and Qatar.

"Any action this council takes right now should help, not hinder these sensitive, and ongoing negotiations. And we believe that the resolution on the table right now would, in fact, negatively impact those negotiations," she said.