LONDON: Doctors and whistleblowers who featured in a BBC documentary on Gaza have threatened to withdraw their consent after the broadcaster delayed airing the film, citing an internal review.

The documentary, “Gaza: Medics Under Fire,” was scheduled to be broadcast in February but remains on hold as the BBC investigates a separate program, “Gaza: How to Survive a Warzone,” which was earlier pulled from the BBC’s iPlayer after revelations that its young narrator was the son of a Hamas official.

According to a report by The Guardian, although “Gaza: Medics Under Fire” was cleared for broadcast and approved by the BBC’s legal and editorial compliance teams, the broadcaster has reportedly requested further changes and stated the film will not be aired until the ongoing internal review concludes.

The BBC, however, has not indicated when the review is expected to be completed.

While other broadcasters have expressed interest in airing the film, the BBC has so far blocked those efforts, according to the production company.

The delay has sparked backlash from cultural figures including Susan Sarandon, Gary Lineker, Harriet Walter and Miriam Margolyes, who signed an open letter to BBC Director-General Tim Davie, accusing the corporation of “political suppression.”

“This is not editorial caution. It’s political suppression,” the letter stated. “No news organisation should quietly decide behind closed doors whose stories are worth telling. This important film should be seen by the public, and its contributors’ bravery honoured.”

More than 600 people endorsed the letter, including prominent UK actors Maxine Peake and Juliet Stevenson.

Meanwhile, Basement Films, which produced the documentary, has released additional footage from other doctors in Gaza through its social media channels.

“We have many offers from broadcasters and platforms across the world so that the searing testimonies of Gazan medics and of surviving family members can be heard, in some cases eight months after we spoke to them … We are still urging BBC News to do the right thing,” the company said in a statement.

The situation has also stirred internal concern at the BBC, particularly after the corporation’s chair, Samir Shah, described the editorial failings of “Gaza: How to Survive a Warzone” as a “dagger to the heart” of the BBC’s reputation for trust and impartiality.

A BBC spokesperson told The Guardian: “We understand the importance of telling these stories and know that the current process is difficult for those involved.”