The BBC committed a "significant breach" of media regulations by omitting to mention that the narrator of a programme about the Gaza conflict was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The BBC's director general had already issued an apology, noting there had been "a significant failing in relation to truthfulness".
Ofcom has directed the corporation to air a peak-time statement about its decisions.
"As this represents a serious breach of our rules, we are directing the BBC to broadcast a message of our findings against it on the BBC's second channel at 21:00, with a date to be determined," the regulator stated.
'Possibility to Erode Trust'
The watchdog's report said: "Our investigation determined that the documentary's omission to reveal that the presenter's parent occupied a post in the Hamas-administered authority was substantially inaccurate.
"Consequently that the viewers did not have vital facts which may have been very significant to their assessment of the narrator and the information he provided.
"Trust is at the heart of the bond between a television network and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to erode the very considerable degrees of confidence that viewers would have put in a documentary produced by the BBC about the Israel-Gaza war."
The programme was pulled from iPlayer in February after the presenter's personal associations emerged, and in this past July an broadcaster's internal assessment determined it infringed the corporation's journalistic standards on factual correctness.
A representative for the broadcaster said: "The Ofcom ruling is in line with the conclusions of the corporation's inquiry, that there was a major oversight in the film in relation to the corporation's content standards on accuracy, which aligns with clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in full. We will follow the directive as soon as the schedule and wording are confirmed."
