The public service broadcaster engaged in a "serious breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza conflict was the son of a Hamas official, according to UK media regulator Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The head of the BBC had previously apologised, stating there had been "a significant failing in relation to factual correctness".
The authority has ordered the broadcaster to air a evening declaration about its decisions.
"Given this constitutes a serious breach of our code, we are ordering the broadcaster to broadcast a announcement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a date to be finalised," it said.
'Risk to Erode Trust'
The regulator's announcement declared: "Our investigation found that the programme's omission to reveal that the presenter's father held a role in the Hamas-run administration was substantially inaccurate.
"It meant that the viewers did not have essential details which may have been highly relevant to their judgment of the presenter and the information he provided.
"Trust is at the heart of the relationship between a television network and its public, notably for a state-funded media outlet such as the public broadcaster.
"This error had the risk to damage the very considerable amounts of trust that the public would have put in a BBC factual programme about the Israel-Gaza war."
The film was removed from iPlayer in last February after the presenter's family links were revealed, and in this past July an internal BBC review concluded it violated the organization's journalistic standards on truthfulness.
A corporation official commented: "The regulator's decision is in accordance with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which reflects clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept Ofcom's decision in its entirety. We will comply with the penalty as soon as the timing and wording are determined."
