Former President Nelson Mandela has been admitted to hospital in South Africa with a lung infection.
A presidential spokesman said he is in a "serious but stable condition", although he was able to breathe on his own - a "positive sign".
Mr Mandela, 94, has been ill for some days but deteriorated overnight and was transferred to a hospital in Pretoria.
He led the fight against apartheid and is regarded as the father of democratic South Africa.
BBC News - Nelson Mandela admitted to hospital in 'serious condition'
I was awfully quiet on the subject last time he want to hospital.
But I believe this is it.
Whether it be today or I dare say within the next 7 days we will lose one of the greatest human rights icons in the history of the world.
As a South African, born when the New South Africa began to take it's first roots... I cannot even begin to express the sadness I feel.
He is the father of the nation, him and De Klerk saved us from certain civil war, I am here today, typing this because of what they did.
I can only hope his dream for a better South Africa continues, we still have great challenges ahead.
During my lifetime I have dedicated myself to this struggle of the African people. I have fought against white domination, and I have fought against black domination. I have cherished the ideal of a democratic and free society in which all persons live together in harmony and with equal opportunities. It is an ideal which I hope to live for and to achieve. But if needs be, it is an ideal for which I am prepared to die.
There's a few people on this board that feel the need to knock him at all times, I know Mandelas not perfect but I will not address any of their criticisms today.