The British broadcaster was found to have committed a "major breach" of media regulations by failing to disclose that the voice of a documentary about the Gaza conflict was the son of a Hamas administrator, according to British broadcasting authority Ofcom.
An inquiry by the media regulator into Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, stating there had been "a significant failing in relation to factual correctness".
Ofcom has ordered the broadcaster to air a evening statement about its decisions.
"As this represents a significant violation of our rules, we are instructing the BBC to air a statement of our determinations against it on BBC Two at nine o'clock in the evening, with a date to be confirmed," the statement read.
'Possibility to Undermine Trust'
The regulator's report said: "Our investigation concluded that the film's omission to reveal that the voice's parent occupied a post in the Hamas-run administration was significantly deceptive.
"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 provided.
"Credibility is at the heart of the relationship between a television network and its public, particularly for a national broadcasting corporation such as the public broadcaster.
"This error had the possibility to damage the very considerable amounts of trust that viewers would have placed in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from the BBC's streaming service in last February after the narrator's family links emerged, and in July an corporation's own inquiry concluded it violated the organization's editorial guidelines on accuracy.
A BBC spokesperson stated: "The regulator's decision is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the regulator's ruling in full. We will adhere to the sanction as soon as the date and wording are determined."
