Two police branded vehicles used in the robbery and fitted with blue lights were reportedly found abandoned in Pretoria on Wednesday.
"Bogus police vehicles were used in the commission of the crime, those were not police-owned vehicles...maybe you can ask business people out there who do vehicle markings about this. The suspects were armed and had one thing on their mind – to take whatever they came for," Phahlane told reporters in Pretoria.
The investigation into the heist was continuing after a task team was put together to find the robbers. Investigators were questioning members of SA Police Service (SAPS) and Airports Company of SA (ACSA) staffers. The scope of the investigation might be widened to include probing business people who deal with vehicle markings during the probe, said Phahlane.
Security has been beefed up in and around the airport. Phahlane said the robbery was a security breach which had been well planned, and that there was no evidence of corrupted officers and bribery, he said.