Former president Jacob Zuma's son Duduzane Zuma, who is facing a charge of culpable homicide, was briefly detained at OR Tambo International Airport after landing there on Thursday evening.
However, after Hawks officers confirmed his identity following his arrival at 20:30 he was released, his lawyer Rudi Krause told News24 on Friday.
Krause said that no warrant for Duduzane's arrest had been issued.
He and his family face a tough weekend and week ahead.
Vusi Nhlakanipho Zuma, the youngest son of the former president and his late wife Kate Mantsho, died on Sunday night after a short illness.
Krause said Duduzane planned to attend Vusi's funeral on Saturday.