The British broadcaster was found to have committed a "significant breach" of industry standards by omitting to mention that the narrator of a film about the Gaza situation was the child of a Hamas representative, according to UK media regulator Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The BBC's director general had previously apologised, noting there had been "a serious error in relation to accuracy".
The authority has directed the broadcaster to broadcast a peak-time declaration about its findings.
"As this represents a major infringement of our rules, we are instructing the corporation to broadcast a message of our conclusions against it on BBC Two at 9pm, with a schedule to be confirmed," the regulator stated.
'Potential to Damage Confidence'
The authority's report declared: "Our probe found that the programme's omission to reveal that the narrator's male guardian served in a position in the Hamas-run authority was significantly deceptive.
"This implied that the viewers did not have vital facts which may have been very significant to their evaluation of the narrator and the details he shared.
"Credibility is at the heart of the relationship between a broadcaster and its viewers, especially for a national broadcasting corporation such as the BBC.
"This oversight had the potential to undermine the significantly high degrees of credibility that the public would have put in a BBC factual programme about the Gaza conflict."
The documentary was pulled from the online platform in last February after the boy's familial connections were revealed, and in this past July an corporation's own inquiry concluded it violated the corporation's editorial guidelines on accuracy.
A corporation official commented: "The regulator's decision is in agreement with the findings of Peter Johnston's review, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which reflects clause 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 comply with the sanction as soon as the timing and wording are finalised."
