At least thirteen people have been injured after a bus collided with a taxi on Main Reef road and corner West Lake road in Roodepoort.
Multiple emergency services are scene including Netcare911 paramedics.
Reports from the scene indicate that four people are in a critical condition while the rest sustained moderate to minor injuries.
The Netcare2 helicopter is on the scene to airlift a critically injured woman to a nearby hospital for further medical care.
The exact detail to the cause of the accident will remain a subject for police investigation and comment.
The rest of the injured have been transported by ambulance to various hospitals in the area for further medical care.
The road has been closed off, motorists are advised to use alternative routes.
This accident happened this morning at about 09h00.