Marathon swimmer Diana Nyad's second bid to swim from Cuba to the Florida Keys is over.
According to her Twitter feed, Nyad was pulled from the water early Tuesday morning after swimming for 29 hours. She was about halfway in the journey that was expected to take 60 hours to cover at least 103 miles (166 kilometers).
Elaine Lafferty, who is on the boat according to Nyad's blog, posted on Twitter: "It's over." Lafferty says "the combination of factors was too much to safely continue."
