The British broadcaster was found to have committed a "major breach" of media regulations by not revealing that the narrator of a film about the Gaza situation was the child of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The BBC's director general had previously apologised, stating there had been "a serious error in relation to accuracy".
Ofcom has ordered the broadcaster to broadcast a evening declaration about its conclusions.
"As this represents a serious breach of our rules, we are ordering the broadcaster to air a statement of our findings against it on BBC2 at nine o'clock in the evening, with a timing to be confirmed," the regulator stated.
'Possibility to Damage Credibility'
The authority's report said: "The inquiry we conducted concluded that the documentary's failure to disclose that the narrator's parent occupied a post in the Hamas-administered authority was substantially inaccurate.
"Consequently that the public did not have vital facts which may have been very significant to their judgment of the presenter and the information he shared.
"Credibility is at the core of the relationship between a television network and its viewers, particularly for a state-funded media outlet such as the public broadcaster.
"This failing had the potential to damage the significantly high degrees of trust that viewers would have put in a BBC factual programme about the Gaza conflict."
The film was withdrawn from iPlayer in February after the boy's personal associations emerged, and in the month of July an internal BBC review found it violated the corporation's content policies on factual correctness.
A corporation official said: "The regulator's decision is in line with the conclusions of Peter Johnston's review, that there was a serious error in the film in relation to the broadcaster's journalistic policies on accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept the regulator's ruling in its entirety. We will follow the sanction as soon as the schedule and wording are confirmed."
