Uber is suspending its self-driving car program after one of its autonomous Volvo SUVs was involved in a high-impact collision in Tempe, Arizona over the weekend.

"The Uber vehicle was not responsible for the incident," said police information officer Josie Montenegro. "Another car failed to yield for the Uber, causing it to flip on its side."

The transportation giant was quick to point out that it's already kicked off a thorough investigation and can confirm that there wasn't a backseat passenger in the car at the time of the accident.

Uber first started testing its self-driving SUVs in Pittsburgh in August 2016, and it launched trials in Tempe last month after it was invited to do so by the state government.

It hasn't been plain sailing

Since the vehicles started hitting the road, they've found themselves in a lot of hot water. First, one was caught running a red light (put down to human error), then Alphabet-owned Waymo initiated legal proceedings over stolen technology.

Not good.