South African police are investigating the deaths of at least 20 people at a nightclub in the coastal town of East London.
It is unclear what led to the deaths of the young people, who were reportedly attending a party to celebrate the end of winter school exams.
Local newspaper Daily Dispatch reported that bodies were strewn across tables and chairs without any visible signs of injuries.
"At this point, we cannot confirm the cause of death," said health department spokesperson Siyanda Manana.