The police announced on Tuesday that arrests have been made in the investigation into the mass murder of 14 miners.

Acting National Police Commissioner Khomotso Phahlane says investigators have made a breakthrough, arresting four suspects, in the investigation of the mass murder of 14 suspected illegal miners in Benoni.

The bodies were discovered over two days last week near a railway line on the East Rand.

Phahlane made the announcement in Pretoria on Tuesday night, where he also revealed that two people have been arrested in connection with the robbery at OR Tambo International Airport.

      He confirmed that a further two people, including a police officer, were still being questioned