The BBC was found to have committed a "significant breach" of industry standards by failing to disclose that the voice of a documentary about the Gaza conflict was the child of a Hamas administrator, according to UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the film was "materially misleading".
The BBC's director general had previously apologised, saying there had been "a significant failing in relation to factual correctness".
Ofcom has instructed the broadcaster to broadcast a peak-time announcement about its findings.
"As this represents a significant violation of our code, we are directing the corporation to air a statement of our findings against it on BBC Two at 9pm, with a schedule to be confirmed," it said.
'Risk to Undermine Credibility'
The authority's statement said: "The inquiry we conducted found that the film's omission to reveal that the presenter's father occupied a post in the Hamas-run administration was substantially inaccurate.
"Consequently that the viewers did not have vital facts which may have been extremely pertinent to their assessment of the voice and the information he shared.
"Credibility is at the center of the relationship between a television network and its public, especially for a national broadcasting corporation such as the public broadcaster.
"This failing had the possibility to damage the exceptionally strong amounts of trust that viewers would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The programme was removed from the online platform in February after the presenter's personal associations were revealed, and in July an broadcaster's internal assessment determined it infringed the organization's content policies on accuracy.
A representative for the broadcaster said: "The regulator's decision is in line with the findings of the corporation's inquiry, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on accuracy, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept Ofcom's decision in complete. We will follow the penalty as soon as the date and wording are confirmed."
