Software company founder John McAfee was taken to hospital on Thursday after being denied political asylum in Guatemala.
McAfee told The Associated Press that he suffered chest pains overnight but didn't believe he had a heart attack.
A government doctor said he appeared to be suffering from high stress.
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South Carolina residents were told to remain alert to new dangers amid fears more dams in the area could burst as the death toll rose to 16.
As the upcoming film Suffragette is about to be released, ITV News speaks to the family of one of the key figures in the movement.
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