Sir David Nicholson has written a letter outlining his intention to retire in March next year to the chair of NHS England Professor Malcolm Grant. In it he writes:
Whilst I believe we have made significant progress together under my leadership, recent events continue to show that on occasion the NHS can still sometimes fail patients, their families and carers. This continues to be a matter of profound regret to me but please know that on a daily basis I continue, and will always continue, to be inspired and moved by the passion that those who work in the NHS continue to show.
More top news
Nothing could distract Japanese flutist Yukie Ota from her performance - not even a butterfly which decided to land on her face.
Alexander Hennessy captured the moment an armed robber pointed a gun at him as he cycled through Buenos Aires on his helmet-mounted GoPro.
Brave Dylan Knox, 18, hopes to follow in the footsteps of inspirational Stephen Sutton and raise as much as he can for charity.