US swimmer Diana Nyad said this will be her final attempt at making the 103-mile journey from Cuba to Florida without a shark cage.
Ms Nyad said before beginning the gruelling swim, "I'm learning as I get older, and I'm really getting older now, that there's a fine line between having grace and letting go of something that you have no control over and you're just not going to beat, like Mother Nature maybe."
More top news
Ferrari are back as Sebastian Vettel ended the famous marque's 34-race drought without a victory in Malaysia.
A four year old girl left her home alone at 3am and hopped on a Philadelphia bus in the search of a 'slushie'.
New hip fractures add £1.1 billion to the cost of running hospitals each year in the UK, a study has found.