Uber halts self-driving car tests after Arizona crash

Uber temporarily hit the brakes on tests of its self-driving cars following a crash Friday evening in Tempe, AZ, that involved one of the company's autonomous vehicles. Vehicles in Arizona, Pittsburgh and San Francisco were still grounded Sunday while the investigation continued. "We are continuing to look into this incident and can confirm we had no backseat passengers in the vehicle," an Uber spokeswoman emailed USA TODAY on Sunday. The vehicle involved in the accident was in a self-driving mode. Fresco News posted pictures of the flipped Volvo SUV that was involved in the crash.