The public service broadcaster committed a "major breach" of industry standards by not revealing that the narrator of a film about Gaza was the offspring of a Hamas administrator, as ruled by UK media regulator Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to truthfulness".
Ofcom has directed the broadcaster to air a prime-time statement about its findings.
"As this represents a significant violation of our code, we are directing the BBC to transmit a message of our determinations against it on BBC2 at nine o'clock in the evening, with a schedule to be determined," the statement read.
'Risk to Undermine Confidence'
The regulator's announcement declared: "Our investigation concluded that the film's omission to reveal that the narrator's father held a post in the Hamas-controlled government was significantly deceptive.
"It meant that the audience did not have critical information which may have been very significant to their judgment of the presenter and the information he presented.
"Confidence is at the center of the bond between a television network and its audience, especially for a state-funded media outlet such as the public broadcaster.
"This oversight had the potential to undermine the significantly high amounts of credibility that audiences would have placed in a BBC factual programme about the Gaza conflict."
The programme was pulled from the online platform in the month of February after the narrator's personal associations were revealed, and in the month of July an broadcaster's internal assessment concluded it infringed the corporation's editorial guidelines on factual correctness.
A BBC spokesperson said: "The authority's determination is in line with the findings of Peter Johnston's review, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on factual correctness, which reflects regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with Ofcom's decision in its entirety. We will follow the penalty as soon as the timing and language are confirmed."
