Uber, a taxi ordering service company through smartphones, was forced to suspend its fleet of driverless units after an accident that took place in the United States last Friday. Uber confirmed the authenticity of the image and announced that they will stop testing not only in Arizona but also in Pittsburgh, where they started the experiment and have created a research laboratory to accelerate this technology. The accident happened when a driver of a second vehicle “did not give way” to Uber’s car when making a turn , said Josie Montenegro, a spokeswoman for the Tempe Police Department. Fortunately, there were no injuries or deaths to be mourned. However, the project was discontinued after a Volvo XC90-branded car was overturned on a highway in Tempe, Arizona. Two “security” drivers were traveling in the front seats of the Uber vehicle , which operated in autonomous mode at the time of the crash, Uber said in an e-mail. The rear seats were empty.