The BBC engaged in a "serious breach" of media regulations by omitting to mention that the narrator of a film about the Gaza situation was the son of a Hamas official, as ruled by UK media regulator Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The head of the BBC had already issued an apology, stating there had been "a serious error in relation to factual correctness".
The regulator has ordered the corporation to broadcast a evening statement about its findings.
"Given this constitutes a major infringement of our regulations, we are ordering the broadcaster to air a statement of our conclusions against it on BBC2 at 21:00, with a schedule to be confirmed," the regulator stated.
'Possibility to Undermine Credibility'
The authority's statement said: "Our probe found that the documentary's lack of disclosure that the presenter's parent occupied a position in the Hamas-administered government was substantially inaccurate.
"This implied that the audience did not have essential details which may have been highly relevant to their judgment of the presenter and the information he provided.
"Credibility is at the heart of the bond between a media organization and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the risk to damage the very considerable degrees of trust that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The programme was withdrawn from the BBC's streaming service in the month of February after the presenter's familial connections came to light, and in this past July an broadcaster's internal assessment concluded it violated the corporation's editorial guidelines on accuracy.
A corporation official said: "The Ofcom ruling is in line with the results of the corporation's inquiry, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on accuracy, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the regulator's ruling in full. We will adhere to the sanction as soon as the schedule and wording are determined."
