The floor of the reception area has collapsed at the Charlotte Maxeke Academic Hospital apparently trapping several people.
Yassen Theba, who works for a security response company with links to paramedic services, confirmed this to News24 on Thursday afternoon.
Paramedics were on their way to the scene.
BREAKING >> Eyewitnesses record chaos at Charlotte Maxeke Hospital following entrance collapse, say there are no apparent plans to evacuate. pic.twitter.com/gqjfShq79I— Bhekisisa M&G Health (@Bhekisisa_MG) March 2, 2017