The BBC was found to have committed a "serious breach" of industry standards by not revealing that the narrator of a programme about the Gaza situation was the child of a Hamas official, according to UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a serious error in relation to accuracy".
The regulator has directed the corporation to transmit a prime-time statement about its decisions.
"Since this amounts to a significant violation of our code, we are ordering the BBC to air a statement of our conclusions against it on BBC Two at nine o'clock in the evening, with a date to be confirmed," it said.
The regulator's report declared: "Our probe determined that the film's omission to reveal that the presenter's parent held a role in the Hamas-controlled administration was substantially inaccurate.
"Consequently that the viewers did not have vital facts which may have been very significant to their assessment of the narrator and the content he presented.
"Confidence is at the core of the connection between a media organization and its viewers, particularly for a public service broadcaster such as the public broadcaster.
"This failing had the potential to undermine the very considerable levels of trust that the public would have invested in a documentary produced by the BBC about the Gaza conflict."
The film was withdrawn from the online platform in last February after the presenter's personal associations were revealed, and in July an broadcaster's internal assessment determined it breached the broadcaster's content policies on truthfulness.
A representative for the broadcaster said: "The regulator's decision is in line with the conclusions of Peter Johnston's review, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the regulator's ruling in full. We will comply with the directive as soon as the schedule and wording are confirmed."
Elena Hartwell is a multidisciplinary artist and educator passionate about fostering creative communities in London.