A security guard deployed to protect the Bank of Lisbon building in Johannesburg is one of seven people arrested in the early hours of Sunday for allegedly stealing electricity infrastructure, City Power has said.Spokesperson Isaac Mangena said security officers spotted a “suspicious” Hyundai truck near Helen Joseph Street and when they attempted to stop the vehicle, it sped off.“The officers gave chase and the vehicle finally stopped around Braamfontein. Seven suspects were arrested in possession of 48 meters of 120×4 core copper cable, two flat screen TVs and 136 circuit breakers,” Mangena said.“The suspects stated that they stole the items at the Bank of Lisbon, the building that burnt in Johannesburg two months ago.”The security officers are part of the teams deployed to protect the critical underground tunnels in the CBD that house valuable equipment including cables, he explained. City Power CEO Lerato Setshedi said the inner-city underground tunnels were constantly targeted, resulting in them adapting their security strategy accordingly."This arrest [proves] that our electricity copper cable and other components are constantly a target of such criminals. However, given our improved efforts to safeguard our tunnels, the crime is now deflected to softer targets.”The suspects have been handed over to police.