Nelson Mandela still in 'serious, but stable condition'

South African ex-President Nelson Mandela remains in a serious but stable condition in hospital, the government has said in a statement.

President Jacob Zuma was given an update of his condition by his medical team on Monday evening, it added.

The 94-year-old is spending his fourth day in hospital for treatment for a recurrent lung infection.

Relatives, including his ex-wife Winnie Madikizela-Mandela, visited the ailing former leader on Monday.

He has been in intensive care since he was admitted to the hospital in Pretoria on Saturday for the third time this year.

In December, Mr Mandela spent 18 days undergoing treatment for a lung infection and gallstones.