Uber has suspended all self-driving vehicle operations after one of its automated cars struck and killed a pedestrian in Arizona on Sunday night.
According to the Arizona Central, a 49-year-old woman was hit by the Uber Volvo while she crossed the street – outside of a crosswalk. It's the first known pedestrian fatality involving a self-driving vehicle in the United States, according to Bloomberg.
In response, Uber released a statement saying "our hearts go out to the victim's family."
On Monday, the $68 billion company paused all automated tests in Pittsburgh, San Francisco, Toronto and the Phoenix area.
All autonomous Ubers have a human at the wheel as a precaution, but the cars only go out of autonomous mode when they "encounter a traffic situation they can't negotiate," the Arizona Central adds.
As recently as December, Uber acknowledged that they don't yet have the technology to operate automated cars without a human in the driver's seat as a precaution, according to The Verge.
The Verge added that Uber knew "accidents are inevitable" and that it planned to be transparent about all incidents, no matter the severity.