The BBC engaged in a "major breach" of broadcasting rules by failing to disclose that the presenter of a documentary about Gaza was the offspring of a Hamas official, according to UK media regulator Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The head of the BBC had previously apologised, stating there had been "a major oversight in relation to truthfulness".
The regulator has ordered the broadcaster to broadcast a prime-time statement about its decisions.
"Since this amounts to a significant violation of our rules, we are instructing the broadcaster to air a message of our conclusions against it on BBC Two at nine o'clock in the evening, with a date to be confirmed," the regulator stated.
'Risk to Erode Confidence'
The authority's statement said: "The inquiry we conducted found that the programme's failure to disclose that the voice's father served in a post in the Hamas-controlled government was materially misleading.
"It meant that the public did not have critical information which may have been extremely pertinent to their assessment of the narrator and the details he presented.
"Credibility is at the center of the bond between a television network and its audience, especially for a state-funded media outlet such as the BBC.
"This oversight had the potential to damage the significantly high degrees of credibility that audiences would have put in a BBC factual programme about the Gaza conflict."
The film was removed from iPlayer in the month of February after the presenter's familial connections emerged, and in this past July an internal BBC review found it violated the corporation's journalistic standards on accuracy.
A corporation official commented: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a major oversight in the film in relation to the corporation's content standards on factual correctness, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in complete. We will comply with the penalty as soon as the timing and wording are finalised."
