Houghton Mifflin Harcourt is postponing the publication of Naomi Wolf’s forthcoming book “Outrages” after questions have been raised about the accuracy of her research.

The book, which explores how 19th-century British laws gave the government new ways to punish and criminalize same-sex relationships, was expected to go on sale in the United States on June 18, with an announced first print run of 35,000 copies.

The publisher initially stood by Wolf last month after an embarrassing on-air correction to her interpretation of historical records occurred during an interview with the BBC. Now, the company is taking the extreme step of recalling copies from retailers.

“As we have been working with Naomi Wolf to make corrections to ‘Outrages,’ new questions have arisen that require more time to explore. We are postponing publication and requesting that all copies be returned from retail accounts while we work to resolve those questions,” a spokeswoman for Houghton Mifflin Harcourt said in an email Thursday evening.

The blowback against Wolf was swift after the BBC Radio host, Matthew Sweet, revealed a critical error in her book that undermined her thesis. During the interview, Wolf told him that she found “several dozen executions” of men accused of having sexual relations with other men.

“I don’t think you’re right about this,” he said.

Sweet said that Wolf had misunderstood the legal term “death recorded” as an execution, when in fact it meant that a death sentence was not carried out.

“It was a category that was created in 1823 that allowed judges to abstain from pronouncing a sentence of death on any capital convict whom they considered to be a fit subject for pardon,” Sweet said. “I don’t think any of the executions you’ve identified here actually happened.”

Wolf said she would look into the records in question and correct future editions, noting that the issue Sweet raised was “a really important thing to investigate.”

Houghton Mifflin Harcourt initially called the mistaken number of executions an “unfortunate error” but said, “we believe the overall thesis of the book ‘Outrages’ still holds.”

It wasn’t the first time Wolf has been questioned over the accuracy of her research and analysis. Known for books such as “The Beauty Myth” and “Vagina: A New Biography,” she has been called out in the past for vastly overstating the number of women who die from anorexia and for making dubious claims about female biology.

But the errors in “Outrages” appear to be more grave, given that Wolf’s publisher is taking the costly step of recalling finished copies, a rare measure that is usually only undertaken for books that contain fatal factual flaws or other more serious transgressions. In 2012, Houghton Mifflin Harcourt recalled books by journalist Jonah Lehrer after evidence surfaced that he had fabricated quotes and plagiarized.

It’s unclear whether “Outrages” will also be recalled in Britain, where it was released in May by the publisher Virago.

The recent controversy over “Outrages” highlights the perils that publishers face in a competitive market where juicy nonfiction books that feature explosive claims can command the highest sales but are sometimes not vigorously fact-checked or vetted in advance of publication.

Publishers often rely on authors to verify material in their books, and if fact checkers are used, it is typically at the author’s discretion and expense.

Recently, questions have arisen about the accuracy of books by other major nonfiction authors, including Jared Diamond and Michael Wolff, who was called out in an interview for errors in his new book about the Trump administration, “Siege: Trump Under Fire.”

This article originally appeared in The New York Times.