The British broadcaster engaged in a "serious breach" of media regulations by not revealing that the presenter of a film about the Gaza situation was the son of a Hamas official, according to British broadcasting authority Ofcom.
An probe 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 previously apologised, saying there had been "a major oversight in relation to accuracy".
The authority has directed the corporation to air a evening statement about its decisions.
"As this represents a major infringement of our code, we are ordering the BBC to broadcast a announcement of our determinations against it on BBC2 at 9pm, with a date to be confirmed," the statement read.
'Possibility to Erode Trust'
The regulator's announcement declared: "Our investigation found that the film's lack of disclosure that the narrator's parent held a role in the Hamas-controlled government was substantially inaccurate.
"Consequently that the public did not have essential details which may have been very significant to their judgment of the narrator and the content he presented.
"Trust is at the core of the relationship between a broadcaster and its viewers, particularly for a state-funded media outlet such as the BBC.
"This oversight had the possibility to erode the very considerable amounts of trust that audiences would have placed in a BBC factual programme about the Gaza conflict."
The film was pulled from iPlayer in the month of February after the boy's family links emerged, and in July an internal BBC review found it violated the organization's editorial guidelines on truthfulness.
A corporation official said: "The authority's determination is in agreement with the conclusions of the internal assessment, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we accept Ofcom's decision in its entirety. We will follow the penalty as soon as the timing and wording are finalised."
