Tim Davie has resigned as the BBC's director-general.
The chief executive of BBC News Deborah Turness has also resigned.
It comes as the corporation is expected to apologise on Monday following concerns about impartiality, including how a speech by US President Donald Trump was edited in an episode of Panorama.
The concerns regard clips spliced together from sections of the US president's speech on January 6 2021 to make it appear he told supporters he was going to walk to the US Capitol with them to "fight like hell" in the documentary Trump: A Second Chance?, which was broadcast by the BBC the week before last year's US election.
Mr Davie sent a message to staff on Sunday afternoon, saying it was "entirely" his decision to quit.
He said: "In these increasingly polarised times, the B

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