The Johannesburg Roads Agency (JRA) and Joburg Metro Police have arrested 10 suspects for removing a 7m copper cable in Morningside on 8 November.
A JRA inspector saw the men and contacted the JRA Wayleave Department, which handles the authorisation of excavations across the city.
The metro police were then requested to respond.
“We are pleased that the proactive measures put in place to address the spate of infrastructure theft and vandalism is bearing fruit,” said the JRA.
The suspects were taken to the Morningside police station and the case is being investigated by the SAPS.