Diana Nyad shortly before starting the swim
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LIVE: Cuba-US swimmer reaches Florida

US endurance swimmer Diana Nyad is arriving in Florida, on her fifth attempt to become the first person to swim from Cuba without a shark cage.

She had to call off her non-stop swim a year ago after it was hampered by bad weather and jellyfish stings.

She said that this would be her final attempt to cross the 103-mile (166-km) wide Florida Straits.