The public service broadcaster engaged in a "significant breach" of industry standards by not revealing that the presenter of a documentary about the Gaza situation was the son of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The BBC's director general had previously apologised, noting there had been "a serious error in relation to truthfulness".
Ofcom has ordered the broadcaster to air a prime-time statement about its findings.
"As this represents a significant violation of our regulations, we are directing the broadcaster to air a statement of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be finalised," it said.
'Possibility to Erode Credibility'
The regulator's announcement said: "Our investigation concluded that the programme's failure to disclose that the narrator's father served in a post in the Hamas-run administration was materially misleading.
"Consequently that the audience did not have critical information which may have been highly relevant to their evaluation of the presenter and the content he presented.
"Credibility is at the heart of the connection between a media organization and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the possibility to damage the very considerable degrees of credibility that the public would have invested in a factual film from the broadcaster about the Gaza conflict."
The documentary was pulled from iPlayer in the month of February after the narrator's familial connections came to light, and in the month of July an broadcaster's internal assessment concluded it breached the organization's journalistic standards on factual correctness.
A representative for the broadcaster commented: "The authority's determination is in line with the results of the corporation's inquiry, that there was a serious error in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we agree with the authority's determination in its entirety. We will follow the directive as soon as the schedule and language are finalised."
