Thirteen council members voted in favor of the Algerian-drafted text, while Britain abstained. It was the third U.S. veto of a draft resolution since the start of the current fighting on Oct. 7. Washington has also used its veto to block an amendment to draft resolution in December.
"A vote in favor 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 U.N. Ambassador Amar Bendjama told the council before the vote.
U.S. Ambassador to the U.N. Linda Thomas-Greenfield signaled on Saturday that the U.S. would veto the draft resolution over concerns it could jeopardize talks between the U.S., Egypt, Israel and Qatar that seek to broker a pause in the war and the release of hostages held by Hamas in the Gaza Strip.
"Demanding an immediate, unconditional ceasefire without an agreement requiring Hamas to release the hostages will not bring about a durable peace. Instead, it could extend the fighting between Hamas and Israel," Thomas-Greenfield told the council ahead of the vote.
The Algerian-drafted resolution vetoed by the U.S. did not link a ceasefire to the release of hostages. It separately demanded an immediate humanitarian ceasefire and the immediate and unconditional release of all hostages.
"The message given today to Israel with this veto is that it can continue to get away with murder," Palestinian U.N. envoy Riyad Mansour told the council.
Israel's U.N. Ambassador Gilad Erdan said the word ceasefire was being mentioned "as if it is a silver bullet, a magical solution to all of the region's problems."
"A ceasefire achieves one thing and one thing only - the survival of Hamas," Erdan told the council. "A ceasefire is a death sentence for many more Israelis and Gazans."
TEMPORARY CEASEFIRE
The U.S. has now proposed a rival draft resolution calling for a temporary ceasefire in the Israel-Hamas war and opposing a major ground offensive by its ally Israel in Rafah, according to the text seen by Reuters on Monday. It said it plans to allow time for negotiations and will not rush to a vote.
Until now, Washington has been averse to the word ceasefire in any U.N. action on the Israel-Hamas war, but the U.S. text echoes language that President Joe Biden said he used last week in conversations with Israeli Prime Minister Benjamin Netanyahu.
The U.S. draft resolution would see the Security Council "underscore its support for a temporary ceasefire in Gaza as soon as practicable, based on the formula of all hostages being released, and calls for lifting all barriers to the provision of humanitarian assistance at scale."
This is the second time since Oct. 7 that Washington has proposed a Security Council resolution on Gaza. Russia and China vetoed its first attempt in late October.
Washington traditionally shields Israel from U.N. action. But it has also abstained twice, allowing the council to adopt resolutions that aimed to boost aid to Gaza and called for extended pauses in fighting.
The war began when fighters from the Hamas group that runs Gaza attacked Israel on Oct. 7, killing 1,200 people and capturing 253 hostages, according to Israeli tallies. In retaliation, Israel launched a military assault on Gaza that health authorities say has killed nearly 29,000 Palestinians with thousands more bodies feared lost amid the ruins.
In December, more than three-quarters of the 193-member U.N. General Assembly voted to demand an immediate humanitarian ceasefire. General Assembly resolutions are not binding but carry political weight, reflecting a global view on the war.
