The British broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the presenter of a documentary about Gaza was the son of a Hamas administrator, according to British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a serious error in relation to accuracy".
The regulator has instructed the corporation to broadcast a evening statement about its decisions.
"As this represents a serious breach of our regulations, we are instructing the broadcaster to transmit a statement of our findings against it on BBC2 at 9pm, with a date to be determined," the regulator stated.
'Risk to Erode Credibility'
The authority's announcement declared: "Our probe concluded that the film's omission to reveal that the presenter's father served in a position in the Hamas-administered government was substantially inaccurate.
"Consequently that the public did not have vital facts which may have been highly relevant to their assessment of the presenter and the details he shared.
"Confidence is at the center of the relationship between a broadcaster and its public, notably for a public service broadcaster such as the public broadcaster.
"This oversight had the potential to erode the significantly high amounts of credibility that viewers would have placed in a documentary produced by the BBC about the conflict in Gaza."
The documentary was removed from iPlayer in last February after the presenter's familial connections came to light, and in the month of July an corporation's own inquiry determined it breached the corporation's journalistic standards on factual correctness.
A corporation official said: "The regulator's decision is in accordance with the results of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to clause 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we agree with Ofcom's decision in complete. We will adhere to the sanction as soon as the timing and wording are confirmed."