The 18 miners who were still missing shortly before 9 pm (1900 GMT) have been located, said Harmony Gold Mining Company spokeswoman, Charmane Russell. A rescue mission was underway to bring the remaining miners above ground, the mining company said in a statement.
The miners were trapped when a fire started 2,300 meters (about 7,545 feet) below the surface, said the mining company.
About 389 miners had already been brought safely to the surface and Harmony Gold said the fire has been contained.
"I urge all South Africans to keep the miners in their thoughts and prayers during this difficult period," said Zuma before the miners were found.
