The British broadcaster was found to have committed a "serious breach" of industry standards by not revealing that the voice of a documentary about Gaza was the son of a Hamas administrator, according to British broadcasting authority Ofcom.
An probe by Ofcom into the programme Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The BBC's director general had earlier expressed regret, stating there had been "a significant failing in relation to truthfulness".
Ofcom has instructed the corporation to transmit a evening announcement about its decisions.
"Given this constitutes a serious breach of our regulations, we are directing the broadcaster to transmit a statement of our conclusions against it on BBC2 at 9pm, with a date to be finalised," the regulator stated.
'Possibility to Damage Confidence'
The authority's report said: "Our probe concluded that the programme's omission to reveal that the presenter's parent occupied a role in the Hamas-run government was materially misleading.
"This implied that the audience did not have essential details which may have been very significant to their evaluation of the voice and the details he presented.
"Trust is at the heart of the bond between a television network and its public, particularly for a public service broadcaster such as the BBC.
"This error had the potential to damage the significantly high amounts of trust that audiences would have placed in a BBC factual programme about the Israel-Gaza war."
The documentary was pulled from the BBC's streaming service in the month of February after the narrator's familial connections were revealed, and in this past July an internal BBC review determined it infringed the broadcaster's content policies on accuracy.
A representative for the broadcaster commented: "The regulator's decision is in agreement with the results of Peter Johnston's review, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which reflects clause 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept Ofcom's decision in full. We will follow the directive as soon as the date and wording are finalised."
