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 son of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The head of the BBC had already issued an apology, stating there had been "a serious error in relation to accuracy".
The regulator has instructed the broadcaster to broadcast a evening statement about its conclusions.
"Given this constitutes a serious breach of our code, we are instructing the BBC to broadcast a announcement of our findings against it on BBC2 at 21:00, with a date to be determined," the statement read.
'Potential to Damage Confidence'
The authority's announcement stated: "The inquiry we conducted determined that the documentary's omission to reveal that the narrator's parent held a position in the Hamas-controlled government was substantially inaccurate.
"This implied that the public did not have vital facts which may have been highly relevant to their evaluation of the presenter and the information he shared.
"Credibility is at the core of the connection between a broadcaster and its public, especially for a public service broadcaster such as the public broadcaster.
"This error had the potential to erode the very considerable degrees of confidence that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from iPlayer in February after the narrator's family links emerged, and in the month of July an broadcaster's internal assessment determined it breached the corporation's journalistic standards on truthfulness.
A BBC spokesperson commented: "The Ofcom ruling is in agreement with the results of Peter Johnston's review, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on accuracy, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept Ofcom's decision in full. We will adhere to the sanction as soon as the schedule and wording are determined."
