Following Greg Dyke's resignation as BBC director general, statements have been issued by Mr Dyke, the corporation's acting Chairman Lord Ryder and the acting Director General Mark Byford.
Here are those statements in full.
Former Director General Greg Dyke
I am today announcing that I have resigned from the BBC.
My position as director general has inevitably been compromised by the criticisms of BBC management in the Hutton report.
Following Gavyn Davies' decision to go, I felt I too should offer my resignation to the Board of Governors.
With the departure of both Gavyn and myself and the apology I issued on behalf of the BBC yesterday, I hope that a line can now be drawn under this whole episode
I have enjoyed my time at the BBC and in particular I've loved working with so many talented and enthusiastic people.
I am proud of what we have achieved together over the last four years.
With the departure of both Gavyn and myself and the apology I issued on behalf of the BBC yesterday, I hope that a line can now be drawn under this whole episode.
Throughout this affair my sole aim as director general of the BBC has been to defend our editorial independence and to act in the public interest.
Acting Chairman Lord Ryder
The Secretary of State for Culture, Media and Sport has announced that the process for appointing a new chairman will begin shortly.
I have agreed to be the acting chairman, and I shall not be putting forward my name for the position on a permanent basis.
The appointment of director general is solely a matter for the BBC's Board of Governors. Both roles are essential to a strong and independent BBC and it is important that the vacancies created by the departures of Gavyn Davies and Greg Dyke are filled as soon as possible and with due care.
The departures of Gavyn Davies and Greg Dyke will be regretted throughout the BBC.
Their contributions to the organisation in terms of strong, dynamic leadership are beyond doubt.
On behalf of the BBC I have no hesitation in apologising unreservedly for our errors and to the individuals whose reputations were affected by them
I would like to place on record the appreciation of the Board of Governors for their services to the BBC.
The BBC must now move forward in the wake of Lord Hutton's report, which highlighted serious defects in the Corporation's processes and procedures.
On behalf of the BBC I have no hesitation in apologising unreservedly for our errors and to the individuals whose reputations were affected by them.
We have begun to implement major reforms, including outside journalism, compliance systems, editorial processes and training of new recruits.
These changes, and other actions arising from the Hutton Report, will be completed by Mark Byford, the acting director general.
Mark has worked for the BBC for 24 years. He is steeped in the values of public service broadcasting, as a former director of regional broadcasting and as director of the World Service.
He is widely respected inside and outside the BBC and the board has every confidence that under his strong and proven leadership the BBC will be in good hands.
Acting Director General Mark Byford
I would first like to pay tribute to Greg Dyke and his tenure as director general.
Like all colleagues in the BBC I am shocked and saddened at his departure.
Greg has brought tremendous dynamism, energy and drive and is hugely respected by all the staff at all levels throughout the organisation and is recognised for his warmth, integrity and talent.
I recognise it is now my task as acting director general to lead the organisation through what is a very turbulent period.
We must now study the Hutton report carefully, learn appropriate lessons and implement relevant measures.
The BBC must provide high quality, independent, impartial journalism, recognised for its accuracy, fairness and objectivity.
We are now united in looking forward to working with the Board of Governors to ensure the BBC emerges from this difficult time a strong, independent and vibrant organisation
It must be recognised in the UK and around the world for trusted, reliable, authoritative news; intelligent discussion and debate; and courageous investigative journalism set within a rigorous and robust editorial framework.
Creativity is the heart of the organisation and we must strive to promote high quality, innovation and ambition in all we do, serving audiences as a beacon of public service broadcasting.
I believe passionately in the values of the BBC and its role.
As acting director general I will lead it to the very best of my ability together with an outstanding team of colleagues.
My executive committee team also want to put on record their affection for Greg and their great admiration for all he has achieved as director general.
They, too, are very sad to see him go but understand and accept his decision.
As an executive, we are now united in looking forward to working with the Board of Governors to ensure the BBC emerges from this difficult time a strong, independent and vibrant organisation, building on the legacy Greg has left behind.