The public service broadcaster was found to have committed a "major breach" of industry standards by not revealing that the narrator of a documentary about Gaza was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "significantly deceptive".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a serious error in relation to truthfulness".
Ofcom has ordered the BBC to transmit a evening statement about its decisions.
"As this represents a major infringement of our code, we are ordering the broadcaster to broadcast a message of our determinations against it on BBC Two at 9pm, with a date to be confirmed," the regulator stated.
'Risk to Damage Confidence'
The authority's report declared: "Our investigation determined that the programme's lack of disclosure that the narrator's male guardian served in a position in the Hamas-run authority was significantly deceptive.
"It meant that the viewers did not have critical information which may have been very significant to their evaluation of the presenter and the details he provided.
"Confidence is at the heart of the relationship between a television network and its public, particularly for a public service broadcaster such as the public broadcaster.
"This oversight had the risk to undermine the significantly high levels of trust that viewers would have put in a BBC factual programme about the Gaza conflict."
The film was pulled from iPlayer in February after the presenter's familial connections were revealed, and in the month of July an broadcaster's internal assessment concluded it violated the corporation's journalistic standards on factual correctness.
A BBC spokesperson stated: "The authority's determination is in agreement with the conclusions of the internal assessment, that there was a significant failing in the programme in relation to the corporation's content standards on truthfulness, which aligns with clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the authority's determination in its entirety. We will adhere to the penalty as soon as the schedule and language are determined."
