NSRI rescues unconscious sailor off Cape Town coast
The South African Police Service (SAPS) and the Hartbeespoort Emergency Medical Services (HEMS) were also activated.
"On arrival on the scene, a vehicle was found submerged in the water. NSRI and SRU rescue swimmers free-dived on the vehicle and a safety line was attached to the submerged vehicle from a towing services vehicle.
"The rescue team, while free-diving on the vehicle, was able to break into the vehicle and the body of a man was recovered from the vehicle and taken on board the SRU rescue craft."
The body was brought to the NSRI rescue station, where HEMS paramedics declared him dead.
"The body of the unidentified man has been taken into the care of police and government health forensic pathology services and [the] police have opened an inquest docket," Crewe added.
Police in the province could not be reached for comment.