The public service broadcaster was found to have committed a "major breach" of media regulations by not revealing that the presenter of a documentary about the Gaza conflict was the child of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The head of the BBC had already issued an apology, stating there had been "a serious error in relation to factual correctness".
The regulator has directed the broadcaster to air a evening statement about its findings.
"As this represents a serious breach of our code, we are directing the broadcaster to air a statement of our determinations against it on the BBC's second channel at 21:00, with a date to be confirmed," it said.
The regulator's report declared: "Our investigation determined that the programme's lack of disclosure that the presenter's parent served in a position in the Hamas-controlled authority was significantly deceptive.
"Consequently that the viewers did not have essential details which may have been extremely pertinent to their evaluation of the presenter and the information he shared.
"Trust is at the core of the bond between a broadcaster and its audience, notably for a state-funded media outlet such as the BBC.
"This failing had the potential to damage the very considerable amounts of credibility that the public would have put in a documentary produced by the BBC about the conflict in Gaza."
The film was pulled from iPlayer in last February after the boy's personal associations emerged, and in this past July an corporation's own inquiry determined it infringed the broadcaster's editorial guidelines on accuracy.
A BBC spokesperson commented: "The regulator's decision is in accordance with the results of the corporation's inquiry, that there was a serious error in the film in relation to the corporation's content standards on factual correctness, which aligns with regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with the regulator's ruling in its entirety. We will comply with the sanction as soon as the timing and wording are finalised."
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Patrick Love
Patrick Love