Washington DC - Appointees and staffers in President Joe Biden's administration rallied outside the White House on Wednesday demanding a permanent ceasefire in Israel's siege on Gaza.

Donned in masks and glasses to hide their identities, more than three dozen Biden appointees, staffers, and civil service career staff held a vigil in front of the White House to demand action to protect Palestinian lives.

"The US government’s decision to double down on fueling the violence has put our objectives… around the globe in jeopardy for us to achieve any movement on some of the most intractable issues we face today," Josh Paul, a former State Department official who resigned to protest the continued sale of weapons to Israel, read on behalf of the group.

"The temporary ceasefire ended 13 days ago, and we have been horrified to see the full resumption of killings, displacement and bombardment of Palestinian civilians in Gaza. A temporary pause to this violence was never enough," he continued.

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"We must move with urgency to save as many lives as possible and achieve an immediate, permanent ceasefire agreement and the return of all hostages."

The action was the latest in a series of demonstrations rocking the nation as the death toll caused by Israel's assault on Gaza continues to mount, surpassing more than 18,000.

Protesters have urged the administration to end weapons sales and military aid to Israel and do more to protect Palestinians from ongoing Israeli attacks.

Last month, more than 800 staffers and political appointees signed a letter to Biden, Vice President Kamala Harris, and Cabinet members calling for a ceasefire, while congressional staffers staged a walkout on Capitol Hill.

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"The American people and respected institutions like the United Nations are pleading for a ceasefire, but this administration has yet to listen," Paul said on Wednesday.

"We demand President Biden and members of the Cabinet to speak up: Call for a permanent ceasefire, a release of all hostages and an immediate de-escalation now."