WASHINGTON - A detailed account of the raid that killed Osama bin Laden, written by a member of the Navy SEALs who participated in the still-classified mission, is set for release next month, the publisher announced Wednesday.

The announcement came as a former Pakistani ambassador to the United States, Husain Haqqani, called on Pakistan to explain how the Qaeda leader was able to hide in Abbottabad for years and reveal who in the country helped him.

The book “No Easy Day: The Firsthand Account of the Mission That Killed Osama bin Laden” is generating a lot of controversy even before its release on September 11, with the publisher expecting a record sales.

Questions are being raised over the timing of its publication and its content.

Both the Pentagon and CIA said Wednesday that the book was not in any way vetted by either department to prevent unwanted classified information from being released. Officials in both departments were cited as saying in media reports that they were unaware of the SEAL’s true identity, but described co-author Kevin Maurer as a well-respected journalist.

Lt Commander Chris Servello, a Navy spokesman, said it’s possible any former service member could be punished for revealing national security secrets. “Any service member who discloses classified or sensitive information could be subject to prosecution — this doesn’t end when you leave the service,” Servello said. “There is nothing unique to the special warfare community in this regard.”

Along with using the pseudonym “Mark Owen,” the author protected his fellow SEAL Team 6 members by changing their names in the book.

The book could get caught up in the politically charged arena of the presidential campaign, similar to what occurred with another planned narrative account of the raid, a film by Kathryn Bigelow and Mark Boal called “Zero Dark Thirty,” The New York Times said. That film was originally scheduled for release in October, but was moved to December after Republicans said it would help dramatize one of the President Barack Obama’s signature achievements right before the election. The project also prompted complaints from some Republicans that the administration had provided improper access about the raid to the filmmakers, an accusation the White House denied.

In August 2011, The New Yorker published an account of the raid that was so detailed it included information about what the pilot of a Black Hawk helicopter was thinking as the aircraft was on the verge of crashing. That article relied on interviews with officials who had debriefed members of the SEAL team, not with the individuals themselves.

Because the book is written under a pseudonym, the author will appear in disguise during television interviews to promote the book, and his voice will be altered. At least one major network prime-time appearance has been planned, a publishing executive familiar with the plans said.