The ride-hailing company Uber is suspended its pilot program for driverless cars after one of its test vehicles flipped over on its side.

Images from the scene of the Friday, 24 March mishap in Tempe, Arizona show Uber's Volvo SUV on its side, and two other vehicles with damage on their starboard flanks.  The Volvo is pointing in the wrong direction for the side of the road on which it landed.  Uber says its SUV was in autonomous mode with two designated "safety" drivers up front and no passengers at the time of the crash, which resulted in no injuries.  

Cops said that another vehicle failed to yield the right of way to the automated truck, causing the accident.  Despite that, Uber announced it is grounding the driverless cars pilot program in Arizona, Pittsburgh, and San Francisco until the Tempe investigation is concluded.

Arizona governor Doug Ducey was the inaugural rider when the company commenced testing autonomous vehicles in the state just a few weeks ago.  Uber moved the program to the desert state after a disastrous period in San Francisco, in which it rather arrogantly decided the rules didn't apply to it and failed to apply for permits to run vehicles without drivers.  In that case, an Uber robot car ran a red light and the company tried to blame human error; but the New York Times subsequently reported that the company's own documents states that the autonomous vehicle didn't recognize that red light and five others.