Durban - The M4 Ruth First Highway was closed to traffic on Monday following a serious crash involving three cars.
According to Garrith Jamieson from Rescue Care Paramedics three vehicles collided just after 10am near the uMhlanga off-ramp, affecting both the north and south bound traffic lanes.
Jamieson said the jaws of life was used to extricate a patient who was severely entrapped in the wreckage.
"The Lenmed 1 Aeromedical Helicopter airlifted the severely injured patient to eThekwini Heart Hospital in a critical condition," he said.
Jamieson said three other people were severely injured were treated with advanced life support before being transported to various hospitals in Durban.