The BBC was found to have committed a "serious breach" of industry standards by not revealing that the narrator of a programme about the Gaza situation was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to accuracy".
The regulator has directed the corporation to air a prime-time announcement about its findings.
"Given this constitutes a major infringement of our rules, we are directing the corporation to broadcast a statement of our determinations against it on the BBC's second channel at 9pm, with a timing to be determined," the statement read.
'Risk to Erode Trust'
The authority's statement declared: "Our probe determined that the programme's lack of disclosure that the narrator's parent held a role in the Hamas-controlled administration was significantly deceptive.
"Consequently that the audience did not have vital facts which may have been very significant to their assessment of the voice and the information he provided.
"Trust is at the center of the relationship between a broadcaster and its viewers, notably for a state-funded media outlet such as the BBC.
"This failing had the risk to erode the exceptionally strong levels of trust that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was removed from the online platform in February after the narrator's familial connections came to light, and in the month of July an broadcaster's internal assessment determined it infringed the corporation's editorial guidelines on accuracy.
A representative for the broadcaster commented: "The regulator's decision is in line with the findings of Peter Johnston's review, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on truthfulness, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the authority's determination in complete. We will comply with the directive as soon as the schedule and wording are confirmed."
