The BBC committed a "significant breach" of media regulations by omitting to mention that the narrator of a programme about the Gaza conflict was the offspring of a Hamas official, according to regulatory body Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The BBC's director general had already issued an apology, stating there had been "a serious error in relation to accuracy".
The regulator has instructed the corporation to broadcast a prime-time declaration about its findings.
"Since this amounts to a serious breach of our regulations, we are instructing the broadcaster to transmit a announcement of our determinations against it on the BBC's second channel at 21:00, with a schedule to be confirmed," the statement read.
'Risk to Undermine Trust'
The regulator's statement said: "Our investigation found that the programme's omission to reveal that the presenter's father occupied a position in the Hamas-administered government was significantly deceptive.
"This implied that the audience did not have essential details which may have been highly relevant to their evaluation of the presenter and the information he shared.
"Credibility is at the center of the connection between a television network and its audience, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the potential to undermine the significantly high levels of confidence that audiences would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the online platform in the month of February after the boy's familial connections came to light, and in the month of July an broadcaster's internal assessment determined it violated the broadcaster's journalistic standards on factual correctness.
A corporation official commented: "The Ofcom ruling is in accordance with the conclusions of Peter Johnston's review, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with the authority's determination in full. We will adhere to the sanction as soon as the schedule and language are finalised."
