The public service broadcaster committed a "major breach" of media regulations by omitting to mention that the narrator of a film about the Gaza situation was the child of a Hamas representative, according to UK media regulator Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The BBC's director general had already issued an apology, saying there had been "a serious error in relation to truthfulness".
The regulator has instructed the broadcaster to transmit a evening statement about its decisions.
"Given this constitutes a major infringement of our rules, we are directing the broadcaster to transmit a message of our conclusions against it on BBC Two at nine o'clock in the evening, with a date to be finalised," the regulator stated.
'Possibility to Undermine Credibility'
The authority's report stated: "The inquiry we conducted found that the film's lack of disclosure that the narrator's father held a role in the Hamas-administered authority was significantly deceptive.
"Consequently that the audience did not have critical information which may have been very significant to their judgment of the voice and the details he presented.
"Confidence is at the core of the connection between a broadcaster and its public, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the risk to erode the significantly high amounts of credibility that the public would have put in a BBC factual programme about the Gaza conflict."
The film was pulled from iPlayer in last February after the boy's personal associations were revealed, and in this past July an broadcaster's internal assessment determined it breached the corporation's editorial guidelines on accuracy.
A corporation official stated: "The Ofcom ruling is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the film in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to clause 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we comply with the authority's determination in its entirety. We will adhere to the penalty as soon as the timing and language are finalised."
