Nelson Mandela wished 'Happy Father's Day' by Jacob Zuma

Former South African President Nelson Mandela continues to get better in a Pretoria hospital, current President Jacob Zuma has said.

He added that the revered ex-leader remained in a serious condition as he recovered from a lung infection.

"Over the last two days, although he remains serious, his doctors have stated that his improvement has been sustained," Mr Zuma said.

Speaking at a national event to mark South Africa's Youth Day, he also asked the audience to join him in wishing Mr Mandela a happy Father's Day.