The British broadcaster committed a "significant breach" of broadcasting rules by not revealing that the narrator of a documentary about Gaza was the son of a Hamas official, as ruled by British broadcasting authority Ofcom.
An probe by Ofcom into Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, noting there had been "a significant failing in relation to factual correctness".
Ofcom has ordered the broadcaster to broadcast a evening declaration about its findings.
"Given this constitutes a significant violation of our rules, we are directing the BBC to transmit a statement of our determinations against it on BBC2 at nine o'clock in the evening, with a schedule to be determined," it said.
'Potential to Damage Confidence'
The regulator's statement declared: "Our probe found that the film's failure to disclose that the voice's parent occupied a post in the Hamas-run administration was significantly deceptive.
"It meant that the viewers did not have vital facts which may have been very significant to their judgment of the narrator and the information he shared.
"Credibility is at the heart of the connection between a media organization and its viewers, especially for a national broadcasting corporation such as the public broadcaster.
"This error had the risk to undermine the very considerable amounts of credibility that the public would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The film was removed from the BBC's streaming service in the month of February after the narrator's familial connections were revealed, and in this past July an corporation's own inquiry concluded it breached the corporation's content policies on accuracy.
A representative for the broadcaster commented: "The Ofcom ruling is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on truthfulness, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the authority's determination in full. We will adhere to the directive as soon as the schedule and wording are determined."
