South Africa's Mandela spends Night in the Hospital.

Authorities in South Africa say former president Nelson Mandela spent the night time in a Pretoria hospital, where he was admitted  for some tests.

President Jacob Zuma visited Mandela on Sunday morning, and claimed the Nobel Peace Prize laureate was "comfortable, and in a good hand. "

An earlier statement from Zuma's office Saturday said the 94-year-old former leader was admitted for tests "consistent regarding his age. " The statement said that for now there are "no cause for alarm.

Meanwhile, South Africans are expressing concern for the iconic former leader. Fans gathered at the Regina Mundi Catholic Church in Soweto Sunday to pray for Mandela.