The public service broadcaster engaged in a "major breach" of industry standards by not revealing that the narrator of a film about the Gaza conflict was the offspring of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "substantially inaccurate".
The head of the BBC had earlier expressed regret, saying there had been "a significant failing in relation to truthfulness".
Ofcom has directed the BBC to broadcast a evening declaration about its decisions.
"Since this amounts to a serious breach of our rules, we are directing the broadcaster to transmit a statement of our findings against it on BBC2 at 21:00, with a date to be confirmed," the statement read.
'Risk to Undermine Credibility'
The authority's announcement declared: "The inquiry we conducted determined that the film's lack of disclosure that the narrator's father occupied a role in the Hamas-controlled administration was substantially inaccurate.
"It meant that the public did not have vital facts which may have been extremely pertinent to their judgment of the narrator and the information he provided.
"Confidence is at the heart of the bond between a media organization and its viewers, notably for a state-funded media outlet such as the BBC.
"This failing had the risk to erode the very considerable levels of confidence that viewers would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was withdrawn from iPlayer in the month of February after the presenter's personal associations emerged, and in the month of July an corporation's own inquiry found it infringed the organization's journalistic standards on accuracy.
A corporation official said: "The Ofcom ruling is in agreement with the findings of Peter Johnston's review, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with the regulator's ruling in full. We will comply with the directive as soon as the date and wording are finalised."
