(HAVANA) -- Long-distance swimmer Diana Nyad's quest to become the first person to swim from Cuba to Florida without using a shark cage came to an end early Tuesday due to "5 to 10 knot winds and less than ideal currents," her team tweeted.
CNN reports the 61-year-old American swimmer had trouble going through ocean swells and faced shoulder pain and asthma. Nyad was also vomiting when she was taken out of the water and boarded onto a boat at 12:45 a.m. Tuesday, almost halfway into her estimated 60-hour journey, according to CNN.
"I am not sad. It was absolutely the right call," she told CNN.
Prior to giving up her 103-mile swim, Nyad's team tweeted that "she was surrounded by dolphins and a beautiful Caribbean sunset."
"But strong currents blew her 15mph off course," and "The combination of factors was too much to safely continue," her team posted on Twitter.
Nyad set out to complete the feat on Sunday, jumping into the water at 7:45 p.m. off Havana's Marina Hemingway. Her latest attempt was her second -- she had previously tried to finish the journey back in 1978 at the age of 28. Swimming inside a shark cage at the time, she was forced to quit nearly 42 hours into the swim because of strong currents and heavy winds.
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