File picture: Mujahid Safodien/AP

Johannesburg - Authorities at OR Tambo International Airport say an armed robber has been killed in a shootout and another has been arrested after they held up security guards in the cargo area.

The management of OR Tambo International Airport says the shootout with police and security guards occurred Saturday at a highway ramp after robbers allegedly fled from the airport's Swissport warehouse in a seized cargo truck.

Authorities at the airport also are investigating whether any workers there have helped robbers who follow arriving travellers and mug them at their homes or other destinations.