Uber has resumed driverless vehicle testing in San Francisco following the weekend crash in Arizona caused by the driver of another car.

Uber’s autonomous vehicles in Arizona and Pittsburgh, Pennsylvania remained off the road but were expected to be operating again soon, a company spokeswoman told Reuters.

The report said Uber had two cars registered with the California Department of Motor Vehicles, but was not transporting passengers. The spokeswoman told the news agency because of this, the company felt confident in putting the cars back on the road while it investigated the collision in Arizona.

Uber had suspended its pilot programme in the three states.

Two ‘safety’ drivers were in the front seats of the Uber car which was in self-driving mode at the time of the crash, Uber told Reuters on Friday.

Media reports had said a driver of another car had failed to give way while making a turn and the resultant crash flipped the Volvo XC90 on its side but no injuries were reported.

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The automaker has repeatedly stated its ambition that, by 2020, no one should be killed or seriously injured in a new Volvo.

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