One officer faces a murder charge and the other three are accused of "defeating the ends of justice" in the Thursday shooting of Tshepo Babuseng, 28, the BBC reported Friday.
Babuseng was protesting housing with a group of people who allegedly charged police trying to clear a blockaded road outside Johannesburg, the BBC said. One police officer then allegedly opened fire, killing Babuseng.
"After receiving the initial factual report on the incident it was decided that there is enough evidence to arrest and charge the member who fired the shots for murder as well as defeating the ends [of justice] and the others for defeating the ends of justice," Gauteng police spokesman Brig. Neville Malila said.
The four officers were suspended pending the outcome of an investigation by watchdog Independent Police Investigative Directorate.