The BBC engaged in a "significant breach" of broadcasting rules by omitting to mention that the presenter of a documentary about Gaza was the child of a Hamas administrator, as determined by UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has found that the programme was "substantially inaccurate".
The BBC's director general had previously apologised, stating there had been "a serious error in relation to factual correctness".
Ofcom has directed the broadcaster to broadcast a peak-time announcement about its decisions.
"Given this constitutes a significant violation of our regulations, we are instructing the corporation to transmit a statement of our findings against it on the BBC's second channel at 9pm, with a timing to be confirmed," the statement read.
'Possibility to Undermine Credibility'
The authority's statement declared: "The inquiry we conducted concluded that the film's omission to reveal that the voice's father served in a position in the Hamas-administered administration was substantially inaccurate.
"It meant that the audience did not have essential details which may have been extremely pertinent to their evaluation of the narrator and the content he shared.
"Trust is at the core of the bond between a broadcaster and its public, especially for a public service broadcaster such as the BBC.
"This error had the possibility to damage the very considerable degrees of trust that the public would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The film was removed from iPlayer in last February after the presenter's family links came to light, and in July an corporation's own inquiry determined it violated the organization's content policies on factual correctness.
A representative for the broadcaster stated: "The regulator's decision is in agreement with the conclusions of the corporation's inquiry, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the regulator's ruling in complete. We will adhere to the directive as soon as the timing and language are finalised."
