The British broadcaster committed a "serious breach" of broadcasting rules by failing to disclose that the narrator of a film about the Gaza situation was the son of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The head of the BBC had earlier expressed regret, stating there had been "a major oversight in relation to factual correctness".
The authority has directed the BBC to transmit a evening declaration about its decisions.
"Given this constitutes a significant violation of our regulations, we are instructing the broadcaster to air a statement of our findings against it on BBC2 at 21:00, with a schedule to be confirmed," it said.
'Potential to Undermine Credibility'
The watchdog's statement said: "Our probe determined that the programme's omission to reveal that the narrator's male guardian served in a role in the Hamas-controlled authority was substantially inaccurate.
"Consequently that the public did not have essential details which may have been very significant to their evaluation of the presenter and the details he presented.
"Credibility is at the center of the connection between a broadcaster and its audience, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the potential to damage the very considerable amounts of trust that audiences would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from the online platform in last February after the presenter's familial connections were revealed, and in July an corporation's own inquiry determined it breached the organization's content policies on factual correctness.
A BBC spokesperson said: "The regulator's decision is in agreement with the results of the internal assessment, that there was a serious error in the programme in relation to the corporation's content standards on truthfulness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept the regulator's ruling in its entirety. We will adhere to the directive as soon as the timing and wording are determined."
