The public service broadcaster committed a "significant breach" of industry standards by not revealing that the presenter of a film about the Gaza conflict was the child of a Hamas official, according to UK media regulator Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a serious error in relation to accuracy".
The authority has directed the broadcaster to transmit a evening announcement about its conclusions.
"As this represents a serious breach of our rules, we are directing the corporation to broadcast a announcement of our conclusions against it on BBC Two at 21:00, with a timing to be determined," the regulator stated.
'Possibility to Undermine Credibility'
The watchdog's report stated: "Our probe found that the programme's omission to reveal that the presenter's male guardian held a position in the Hamas-administered authority was significantly deceptive.
"It meant that the public did not have vital facts which may have been very significant to their judgment of the presenter and the content he presented.
"Trust is at the center of the relationship between a television network and its audience, notably for a state-funded media outlet such as the public broadcaster.
"This oversight had the potential to damage the significantly high amounts of credibility that the public would have put in a factual film from the broadcaster about the Israel-Gaza war."
The documentary was removed from the BBC's streaming service in February after the presenter's family links were revealed, and in the month of July an corporation's own inquiry concluded it infringed the broadcaster's editorial guidelines on factual correctness.
A representative for the broadcaster commented: "The authority's determination is in accordance with the results of the corporation's inquiry, that there was a serious error in the programme in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with the authority's determination in full. We will adhere to the directive as soon as the date and wording are confirmed."
