The BBC was found to have committed a "significant breach" of media regulations by failing to disclose that the narrator of a programme about Gaza was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has found that the programme was "materially misleading".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to truthfulness".
The authority has directed the corporation to transmit a prime-time statement about its decisions.
"As this represents a significant violation of our regulations, we are ordering the broadcaster to broadcast a announcement of our findings against it on BBC Two at 21:00, with a timing to be finalised," the statement read.
'Potential to Erode Trust'
The authority's statement said: "The inquiry we conducted concluded that the film's failure to disclose that the narrator's parent held a role in the Hamas-administered administration was materially misleading.
"Consequently that the public did not have critical information which may have been highly relevant to their evaluation of the presenter and the information he presented.
"Confidence is at the heart of the connection between a broadcaster and its public, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the possibility to undermine the significantly high degrees of confidence that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The programme was pulled from iPlayer in February after the narrator's family links emerged, and in the month of July an broadcaster's internal assessment determined it infringed the organization's content policies on factual correctness.
A representative for the broadcaster stated: "The authority's determination is in agreement with the results of the corporation's inquiry, that there was a serious error in the film in relation to the corporation's content standards on factual correctness, which corresponds to Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the regulator's ruling in full. We will follow the directive as soon as the date and language are determined."
