The BBC engaged in a "major breach" of broadcasting rules by omitting to mention that the narrator of a documentary about Gaza was the offspring of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a serious error in relation to factual correctness".
The regulator has instructed the BBC to transmit a prime-time declaration about its conclusions.
"Given this constitutes a major infringement of our code, we are ordering the broadcaster to transmit a statement of our conclusions against it on BBC Two at nine o'clock in the evening, with a timing to be finalised," it said.
'Risk to Damage Confidence'
The authority's report said: "Our investigation concluded that the documentary's lack of disclosure that the presenter's father held a position in the Hamas-run authority was significantly deceptive.
"Consequently that the viewers did not have critical information which may have been extremely pertinent to their assessment of the presenter and the content he shared.
"Credibility is at the heart of the connection between a television network and its viewers, especially for a state-funded media outlet such as the public broadcaster.
"This error had the possibility to damage the significantly high degrees of credibility that the public would have placed in a factual film from the broadcaster about the conflict in Gaza."
The programme was pulled from the online platform in February after the presenter's family links emerged, and in the month of July an corporation's own inquiry concluded it violated the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson stated: "The Ofcom ruling is in agreement with the conclusions of the internal assessment, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on factual correctness, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the authority's determination in full. We will comply with the directive as soon as the date and wording are finalised."
