The public service broadcaster committed a "significant breach" of media regulations by failing to disclose that the presenter of a film about Gaza was the son of a Hamas representative, according to British broadcasting authority Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The head of the BBC had previously apologised, stating there had been "a significant failing in relation to accuracy".
The regulator has ordered the BBC to air a evening statement about its findings.
"Given this constitutes a major infringement of our regulations, we are ordering the broadcaster to transmit a statement of our findings against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be determined," it said.
'Possibility to Damage Credibility'
The authority's announcement stated: "Our probe found that the documentary's failure to disclose that the presenter's male guardian occupied a position in the Hamas-administered authority was significantly deceptive.
"It meant that the audience did not have critical information which may have been extremely pertinent to their assessment of the voice and the details he shared.
"Credibility is at the core of the bond between a broadcaster and its viewers, particularly for a state-funded media outlet such as the BBC.
"This error had the possibility to undermine the very considerable amounts of credibility that viewers would have placed in a documentary produced by the BBC about the conflict in Gaza."
The documentary was pulled from iPlayer in February after the boy's family links were revealed, and in the month of July an corporation's own inquiry determined it violated the organization's journalistic standards on factual correctness.
A representative for the broadcaster said: "The Ofcom ruling is in agreement with the findings of the internal assessment, that there was a major oversight in the film in relation to the corporation's content standards on factual correctness, which corresponds to regulation 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 comply with the directive as soon as the timing and wording are finalised."