The British broadcaster engaged in a "significant breach" of media regulations by not revealing that the voice of a film about the Gaza conflict was the son of a Hamas representative, as determined by British broadcasting authority Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The head of the BBC had earlier expressed regret, saying there had been "a major oversight in relation to factual correctness".
Ofcom has directed the corporation to air a evening statement about its conclusions.
"Since this amounts to a major infringement of our rules, we are ordering the corporation to air a statement of our findings against it on BBC Two at 21:00, with a schedule to be finalised," it said.
'Risk to Damage Credibility'
The regulator's statement stated: "Our probe concluded that the programme's lack of disclosure that the narrator's parent served in a post in the Hamas-run government was substantially inaccurate.
"This implied that the public did not have essential details which may have been extremely pertinent to their assessment of the narrator and the information he presented.
"Trust is at the center of the relationship between a media organization and its public, especially for a national broadcasting corporation such as the public broadcaster.
"This error had the risk to damage the very considerable levels of confidence that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The programme was pulled from the online platform in February after the narrator's familial connections came to light, and in this past July an corporation's own inquiry found it infringed the organization's editorial guidelines on accuracy.
A representative for the broadcaster stated: "The Ofcom ruling is in line with the results of Peter Johnston's review, that there was a significant failing in the documentary in relation to the corporation's content standards on accuracy, which aligns with regulation 2.2 of the regulator's media standards.
"We have apologised for this and we accept Ofcom's decision in full. We will adhere to the sanction as soon as the timing and wording are determined."
