The BBC was found to have committed a "significant breach" of industry standards by failing to disclose that the presenter of a documentary about Gaza was the son of a Hamas representative, as ruled by UK media regulator Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "substantially inaccurate".
The BBC's director general had already issued an apology, saying there had been "a serious error in relation to accuracy".
The regulator has instructed the corporation to air a peak-time statement about its decisions.
"As this represents a significant violation of our code, we are ordering the broadcaster to transmit a message of our conclusions against it on BBC2 at 9pm, with a schedule to be determined," the statement read.
'Potential to Undermine Credibility'
The authority's announcement declared: "Our investigation concluded that the documentary's lack of disclosure that the presenter's father held a role in the Hamas-administered authority was materially misleading.
"This implied that the viewers did not have essential details which may have been highly relevant to their judgment of the voice and the content he presented.
"Trust is at the core of the relationship between a broadcaster and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the possibility to undermine the significantly high levels of confidence that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The documentary was removed from the online platform in February after the boy's family links came to light, and in July an corporation's own inquiry found it violated the broadcaster's editorial guidelines on factual correctness.
A BBC spokesperson commented: "The regulator's decision is in line with the findings of Peter Johnston's review, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on truthfulness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with Ofcom's decision in complete. We will follow the penalty as soon as the timing and wording are finalised."
