The British broadcaster committed a "major breach" of broadcasting rules by omitting to mention that the voice of a documentary about the Gaza situation was the child of a Hamas official, as ruled by UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has found that the film was "substantially inaccurate".
The head of the BBC had earlier expressed regret, noting there had been "a significant failing in relation to truthfulness".
The authority has directed the BBC to transmit a evening statement about its conclusions.
"Given this constitutes a major infringement of our rules, we are instructing the BBC to air a announcement of our conclusions against it on BBC2 at 21:00, with a timing to be determined," the regulator stated.
'Potential to Erode Credibility'
The watchdog's statement stated: "Our investigation found that the programme's omission to reveal that the presenter's parent occupied a position in the Hamas-controlled government was significantly deceptive.
"It meant that the audience did not have critical information which may have been highly relevant to their assessment of the voice and the information he provided.
"Confidence is at the center of the relationship between a broadcaster and its public, notably for a state-funded media outlet such as the BBC.
"This error had the risk to undermine the very considerable amounts of confidence that audiences would have put in a factual film from the broadcaster about the conflict in Gaza."
The film was removed from iPlayer in last February after the presenter's familial connections were revealed, and in the month of July an broadcaster's internal assessment determined it violated the broadcaster's editorial guidelines on accuracy.
A representative for the broadcaster stated: "The Ofcom ruling is in agreement with the conclusions of the corporation's inquiry, that there was a serious error in the film in relation to the corporation's content standards on accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the authority's determination in its entirety. We will adhere to the penalty as soon as the date and wording are finalised."
