The British broadcaster was found to have committed a "serious breach" of industry standards by omitting to mention that the narrator of a programme about the Gaza situation was the son of a Hamas representative, according to regulatory body Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The BBC's director general had earlier expressed regret, saying there had been "a significant failing in relation to factual correctness".
The regulator has directed the corporation to transmit a peak-time statement about its decisions.
"Since this amounts to a major infringement of our rules, we are ordering the broadcaster to broadcast a statement of our findings against it on the BBC's second channel at nine o'clock in the evening, with a timing to be confirmed," it said.
'Possibility to Erode Confidence'
The regulator's announcement stated: "The inquiry we conducted determined that the programme's failure to disclose that the narrator's parent occupied a post in the Hamas-run administration was significantly deceptive.
"It meant that the viewers did not have critical information which may have been very significant to their judgment of the narrator and the details he shared.
"Trust is at the core of the connection between a broadcaster and its audience, notably for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to damage the very considerable degrees of credibility that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the online platform in February after the narrator's personal associations emerged, and in the month of July an broadcaster's internal assessment determined it violated the corporation's editorial guidelines on factual correctness.
A BBC spokesperson commented: "The regulator's decision is in accordance with the results of the internal assessment, that there was a serious error in the film in relation to the corporation's content standards on truthfulness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept the regulator's ruling in complete. We will follow the directive as soon as the timing and wording are finalised."
