The public service broadcaster was found to have committed a "major breach" of industry standards by not revealing that the presenter of a documentary about the Gaza conflict was the child of a Hamas representative, as ruled by regulatory body Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a major oversight in relation to truthfulness".
The regulator has ordered the broadcaster to broadcast a evening announcement about its decisions.
"Since this amounts to a serious breach of our code, we are ordering the BBC to transmit a announcement of our conclusions against it on BBC2 at 9pm, with a timing to be finalised," the regulator stated.
'Risk to Erode Trust'
The watchdog's report declared: "Our investigation determined that the film's lack of disclosure that the voice's parent held a post in the Hamas-controlled government was significantly deceptive.
"Consequently that the audience did not have essential details which may have been highly relevant to their assessment of the voice and the information he provided.
"Confidence is at the core of the relationship between a media organization and its viewers, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to erode the very considerable degrees of confidence that the public would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from the online platform in last February after the presenter's family links were revealed, and in this past July an corporation's own inquiry determined it breached the organization's journalistic standards on factual correctness.
A corporation official said: "The authority's determination is in agreement with the results of Peter Johnston's review, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on truthfulness, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we agree with the regulator's ruling in its entirety. We will comply with the sanction as soon as the timing and wording are finalised."
