Cape Town - FW de Klerk was hospitalised on Friday at the Panorama Hospital, the FW de Klerk Foundation said in a statement.
The 82-year-old former president "is being treated for a condition known as pneumothorax which is an abnormal collection of air in the pleural space between the lung and the chest wall.
"He underwent a successful procedure this (Saturday) morning and it is expected that he will be discharged from hospital some time next week, " the foundation said.
De Klerk, as the leader of the now defunct National Party, served as president of South Africa from 1989 to 1994.
[READ] Former President FW de Klerk was hospitalised yesterday and underwent a successful procedure this morning. https://t.co/9RkcleRaQ1 pic.twitter.com/tatd3FepGZ
— FWdeKlerkFoundation (@FWdeKlerkFoun) October 27, 2018
He shared the Nobel Peace Prize in 1993 with Struggle icon Nelson Mandela for their work in ending apartheid.
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