One person has died and 17 others were injured, two critically, when a taxi and car collided at the Buccleuch Interchange, north of Johannesburg Saturday morning.

Netcare911 spokesperson Nick Dollman says traffic on the M1, N1 and N3 is still severely affected.

Paramedics, firefighters and police responded to reports of a very serious crash on the N1 direction towards johannesburg.

Paramedics attended to approximately 18 people at the scene. One patient sustained severe injuries and died at the scene.

One female sustained severe injuries and was airlifted to hospital for further urgent care.

The N1 was partially closed while police conducted a forensic investigation and traffic travelling from Midrand to buccleuch was severely affected.