Uber has been forced to recruit private security guards to preserve the safety of its drivers in Johannesburg, South Africa. The move was prompted by protests at the city's Gautrain Station and Sandton City that threatened to break out into violence. According to Eyewitness News, a group of disgruntled taxi drivers tried to intimidate drivers of Uber vehicles, as well as the passengers themselves. In one incident, a driver was held at gunpoint and had their car keys pulled from the ignition. The protesters then turned their attention to the would-be customers, telling them that they were "taking away business from South Africa."