About three dozen rabbis and rabbinical students from US organisations on Tuesday protested at the United Nations, urging a ceasefire in Gaza and asking US President Joe Biden's administration to allow such resolutions to pass instead of vetoing them in the Security Council.
The protests were organised by US Jewish groups including Jewish Voice for Peace, Jews for Racial and Economic Justice, and Rabbis for Ceasefire. Social media posts by the groups said 36 rabbis were at the demonstration inside the UN Security Council Chamber.
The Huffington Post reported that the rabbis gained access to the building as part of a guided tour.
The UN has demanded an immediate humanitarian ceasefire in Gaza amid the huge death toll from the war.
Washington has vetoed resolutions for such calls in the Security Council, alleging it would allow Hamas to regroup and rebuild.
More than three-quarters of the 193-member UN General Assembly backed a move to demand an immediate humanitarian ceasefire last month.
Tuesday's protesters at the United Nations carried banners that read "Biden: the world says ceasefire" and "Biden: Stop vetoing peace."
Ceasefire protests have been seen recently in many parts of the US, ranging from near airports and bridges in New York City and Los Angeles to vigils outside the White House and marches in Washington near the US Capitol.
On Monday, demonstrators demanding a ceasefire in Gaza interrupted a speech by Biden at a church in South Carolina.
The president said he had urged Israel to reduce its attacks and "significantly get out of Gaza".
Israel's brutal, relentless and indiscriminate onslaught on the Gaza Strip, which began on 7 October, has killed more than 23,000 people - mostly women and children, and flattened much of the densely populated enclave, leaving over one million civilians homeless with food shortages threatening famine.