The BBC engaged in a "significant breach" of industry standards by failing to disclose that the presenter of a film about Gaza was the offspring of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The head of the BBC had earlier expressed regret, stating there had been "a significant failing in relation to factual correctness".
Ofcom has ordered the corporation to transmit a evening declaration about its decisions.
"Given this constitutes a serious breach of our code, we are directing the corporation to air a statement of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be confirmed," the regulator stated.
'Risk to Undermine Confidence'
The regulator's report said: "The inquiry we conducted determined that the programme's omission to reveal that the presenter's father occupied a role in the Hamas-administered government was substantially inaccurate.
"It meant that the public did not have essential details which may have been very significant to their assessment of the presenter and the details he provided.
"Credibility is at the heart of the relationship between a television network and its viewers, particularly for a public service broadcaster such as the BBC.
"This oversight had the risk to damage the significantly high levels of trust that audiences would have put in a factual film from the broadcaster about the Israel-Gaza war."
The film was withdrawn from the online platform in last February after the boy's personal associations emerged, and in this past July an internal BBC review found it violated the corporation's journalistic standards on accuracy.
A representative for the broadcaster commented: "The regulator's decision is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on accuracy, which reflects clause 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the regulator's ruling in full. We will adhere to the penalty as soon as the date and wording are confirmed."