The British broadcaster committed a "significant breach" of broadcasting rules by not revealing that the narrator of a documentary about the Gaza situation was the offspring of a Hamas administrator, as determined by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The chief executive of the broadcaster had previously apologised, stating there had been "a serious error in relation to truthfulness".
Ofcom has directed the corporation to transmit a peak-time announcement about its findings.
"As this represents a major infringement of our rules, we are ordering the broadcaster to broadcast a statement of our conclusions against it on BBC Two at 9pm, with a schedule to be finalised," it said.
'Possibility to Undermine Credibility'
The regulator's report said: "Our probe found that the documentary's lack of disclosure that the voice's parent served in a post in the Hamas-controlled authority was significantly deceptive.
"It meant that the public did not have essential details which may have been extremely pertinent to their assessment of the voice and the content he provided.
"Trust is at the core of the bond between a broadcaster and its viewers, notably for a national broadcasting corporation such as the BBC.
"This failing had the potential to undermine the exceptionally strong degrees of trust that audiences would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from iPlayer in last February after the presenter's familial connections were revealed, and in the month of July an internal BBC review determined it infringed the corporation's journalistic standards on factual correctness.
A BBC spokesperson commented: "The Ofcom ruling is in agreement with the conclusions of the internal assessment, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the authority's determination in full. We will comply with the sanction as soon as the timing and wording are determined."
