Documents show that the United States and Israel have sent complaint letters to top United Nations officials contesting the impartiality of their staff over the Gaza conflict, as hundreds of UN staff protested outside its European headquarters, Reuters reports.

UN staff carried placards saying “Peace for Gaza” and “Not a Target”. They laid over 370 white roses next to a memorial plaque in Geneva to represent each UN aid worker killed in the nearly two-year conflict.

“Today, the UN staff are coming together to say that enough is enough, to say that we cannot kill our colleagues in Gaza with such impunity and to say stop to all these murders,” Nathalie Meynet, president of the UN refugee agency staff council, told Reuters at the protest.

The letters highlight the rising tensions between the UN and its top funder, the US, which has already disengaged from the UN Human Rights Council over what Washington says is its anti-Israel stance.

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