The public service broadcaster committed a "significant breach" of broadcasting rules by omitting to mention that the voice of a documentary about the Gaza situation was the son of a Hamas official, as ruled by UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The head of the BBC had earlier expressed regret, stating there had been "a major oversight in relation to accuracy".
Ofcom has instructed the BBC to broadcast a evening statement about its decisions.
"Since this amounts to a major infringement of our regulations, we are ordering the BBC to air a announcement of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be confirmed," the statement read.
'Possibility to Erode Confidence'
The regulator's announcement declared: "Our investigation found that the film's lack of disclosure that the narrator's father occupied a position in the Hamas-controlled administration was significantly deceptive.
"Consequently that the public did not have critical information which may have been highly relevant to their assessment of the narrator and the information he provided.
"Confidence is at the center of the connection between a media organization and its viewers, especially for a state-funded media outlet such as the public broadcaster.
"This error had the potential to undermine the significantly high degrees of credibility that the public would have invested in a BBC factual programme about the conflict in Gaza."
The programme was withdrawn from the BBC's streaming service in last February after the narrator's personal associations came to light, and in this past July an internal BBC review determined it breached the corporation's journalistic standards on accuracy.
A representative for the broadcaster commented: "The authority's determination is in accordance with the findings of Peter Johnston's review, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which aligns with regulation 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in full. We will follow the penalty as soon as the date and wording are finalised."
