The British broadcaster committed a "serious breach" of industry standards by omitting to mention that the presenter of a documentary about Gaza was the child of a Hamas official, according to UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The head of the BBC had previously apologised, noting there had been "a major oversight in relation to accuracy".
Ofcom has instructed the BBC to broadcast a prime-time statement about its conclusions.
"As this represents a significant violation of our rules, we are instructing the broadcaster to broadcast a message of our findings against it on BBC Two at 9pm, with a date to be determined," the statement read.
'Risk to Erode Trust'
The regulator's statement declared: "The inquiry we conducted determined that the film's omission to reveal that the presenter's parent served in a role in the Hamas-run administration was substantially inaccurate.
"It meant that the viewers did not have critical information which may have been very significant to their evaluation of the voice and the content he presented.
"Credibility is at the heart of the connection between a broadcaster and its public, especially for a state-funded media outlet such as the BBC.
"This failing had the possibility to damage the exceptionally strong degrees of trust that audiences would have put in a documentary produced by the BBC about the conflict in Gaza."
The documentary was pulled from the BBC's streaming service in February after the narrator's personal associations were revealed, and in July an internal BBC review concluded it breached the broadcaster's editorial guidelines on truthfulness.
A representative for the broadcaster said: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a serious error in the programme in relation to the corporation's content standards on accuracy, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with the regulator's ruling in its entirety. We will comply with the directive as soon as the timing and wording are confirmed."
