One of the first-ever known victims of self-driving car road tests has died after being struck late Sunday night by an autonomous Uber vehicle.

The car, conducting a test in Tempe, Arizona, was reportedly driving in autonomous mode when the female victim was crossing a street outside of a crosswalk. Uber confirmed that a safety driver was behind the wheel when the accident occurred.

The ride-sharing company has pulled all of its self-driving cars from public roads in Arizona, as well in the cities of San Francisco, Toronto and Pittsburgh, according to The Verge.

The backlash has begun:

The full statement from the Tempe Police Department:

On March 18, 2018 at approximately 10pm, Tempe PD responded to a traffic collision on Curry Road and Mill Avenue in Tempe, Arizona. The vehicle involved is one of the Uber’s self-driving vehicles. It was in autonomous mode at the time of the collision, with a vehicle operator behind the wheel. The vehicle was traveling northbound just south of Curry Road when a female walking outside of the crosswalk crossed the road from west to east when she was struck by the Uber vehicle. The female was identified as 49 year old Elaine Herzberg. Herzberg was transported to a local area hospital where she passed away from her injuries. Uber is assisting and this is still an active investigation.