Today's statement was the first time that officials said Nelson Mandela is suffering from pneumonia.
South African presidential spokesman Mac Maharaj said the former president had fluid on the lung caused by pneumonia, by he was now breathing more easily because the liquid had been "tapped".
Previous statements said he had been suffering from a lung infection.
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Rain will affect most of the UK today, with Scotland remaining largely fine and brighter spells appearing in the east and south.
In a searingly emotive address, the president cast Hillary Clinton as the most qualified candidate to unify America as next US president.
The release is the second batch in a series of leaks that have rattled the Democratic Party.