Uber has pulled its self-driving cars from the roads after an accident which left one of the vehicles on its side.
Pictures posted online showed the car on its right side on an Arizona street, next to another badly damaged vehicle.
The car – a Volvo SUV – was in self-driving mode at the time of the crash, on Friday, Uber said. No one was hurt.
A spokeswoman for the police in Tempe, Arizona said the accident occurred when another vehicle “failed to yield” to the Uber car at a left turn.
“There was a person behind the wheel. It is uncertain at this time if they were controlling the vehicle at the time of the collision,” spokeswoman Josie Montenegro said.
Uber’s self-driving cars always have a human in the driving seat who can take over the controls.
The company pulled its self-driving vehicles off the road in Arizona at first, followed by test sites in Pennsylvania and California – all three states where it operated the vehicles.
The latest incident follows recent difficult months for the firm, which has seen a number of high level executives quit, including the president, Jeff Jones and has faced criticism over workplace practices and ethics.
Meanwhile legal issues have been hampering progress with the testing of its autonomous vehicle technology in California.
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