Prominent literary group PEN America has canceled its annual award ceremony after dozens of nominated writers withdrew in protest of the Israeli war in Gaza, according to the BBC.

The group, which is dedicated to free expression, announced on Monday that it was canceling next week's event. The awards ceremony was due to be held on 29 April.

Nine of the ten writers nominated for a PEN book award had withdrawn from the contest because of its lack of support for Palestinian writers.

The move comes amid a growing protest movement in the US in support of Gaza.

Of the 61 authors and translators nominated for a prize, 28 withdrew their books from consideration, according to a statement from the group.

"This is a beloved event and an enormous amount of work goes into it, so we all regret this outcome but ultimately concluded it was not possible to carry out a celebration in the way we had hoped and planned," said CEO Suzanne Nossel.

PEN America's Literary Programming Chief Officer, Clarisse Rosaz Shariyf, added: "We greatly respect that writers have followed their consciences, whether they chose to remain as nominees in their respective categories or not."

"We regret that this unprecedented situation has taken away the spotlight from the extraordinary work selected by esteemed, insightful and hard-working judges across all categories," she added.

A series of open letters signed by PEN nominees in recent weeks have criticized the group for choosing sides against Gaza in the war.

"In the context of Israel's ongoing war on Gaza, we believe that PEN America has betrayed the organization's professed commitment to peace and equality for all, and to freedom and security for writers everywhere," said one letter signed last month by several famous writers including Michelle Alexander, Naomi Klein and Zaina Arafat.

The writers said that the group was acting as a "cultural front for American exceptionalism" and was complicit in "normalizing genocide".