South African police have made 5 arrests over the weekend in connection with a robbery incident that occurred at an international airport, O.R Tambo, in South Africa’s capital, Johannesburg.

According to Ceoafrica, one of the suspects was held after he posted a picture of himself on social media posing next to his newly acquired sports car.

The men are expected to appear at a magistrates' court on Monday.

It is believed that the man who bragged about his sports car on social media was also found with huge amounts of cash in his luxury estate home, north of Johannesburg.

Police have refused to give any details, saying that police chief Gen Khomotso Phahlane will give an update at a news conference later today.

Last week a group of men driving in bogus police vehicles dressed in police uniforms entered a security zone at Johannesburg’s OR Tambo International Airport and held up guards who were protecting a container full of millions of dollars in cash in various currencies.