The BBC was found to have committed a "major breach" of industry standards by omitting to mention that the presenter of a documentary about the Gaza conflict was the son of a Hamas administrator, as ruled by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The head of the BBC had earlier expressed regret, stating there had been "a major oversight in relation to accuracy".
The authority has directed the BBC to air a evening announcement about its decisions.
"Given this constitutes a major infringement of our rules, we are directing the broadcaster to air a announcement of our determinations against it on the BBC's second channel at 9pm, with a timing to be determined," the statement read.
'Possibility to Erode Credibility'
The watchdog's announcement stated: "Our investigation determined that the documentary's failure to disclose that the voice's father served in a post in the Hamas-run administration was materially misleading.
"This implied that the public did not have vital facts which may have been highly relevant to their judgment of the voice and the content he shared.
"Confidence is at the heart of the relationship between a broadcaster and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to damage the very considerable amounts of trust that audiences would have invested in a documentary produced by the BBC about the Gaza conflict."
The documentary was pulled from the online platform in last February after the narrator's familial connections emerged, and in the month of July an internal BBC review found it breached the corporation's journalistic standards on accuracy.
A corporation official commented: "The authority's determination is in agreement with the findings of the corporation's inquiry, that there was a significant failing in the film in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we comply with the regulator's ruling in its entirety. We will follow the sanction as soon as the schedule and wording are finalised."
