Tenor Jannie Moolman was in a stable but serious condition in hospital after being injured at a restaurant in Hartbeespoort in North West, a spokesman said on Wednesday evening.
He was placed under sedation and would go under the knife again on Thursday, having already been operated on, spokesman Barnard Beukman said in a statement.
“Earlier reports that he had fallen from a roof - due to the nature of his injuries - cannot be accepted as the final conclusion.”
He said the exact cause of his injuries were still unknown.
“Moolman was found alone by a security guard outside the restaurant.”
Beukman said Moolman's family and girlfriend were grateful for the well-wishes they had received from fans and the entertainment industry.
Earlier, Beeld newspaper reported that Moolman had fallen from the second floor of a restaurant.
According to the report, the accident happened on Saturday at a family friend's bachelor party.
Moolman had broken facial bones, his left hand, and was being treated at Milpark hospital in Johannesburg.
His agent, Hetta Saunderson, said it was suspected that he had been pushed because there were marks on his right arm, the newspaper reported. - Sapa