https://techcrunch.com/2018/05/23/uber-is-done-testing-self-driving-cars-in-arizona/

Uber, which had already pulled its autonomous cars off the road following a fatal crash in Tempe, Arizona, is officially calling it quits in the state of Arizona, The Wall Street Journal first reported, citing an internal memo from Uber Advanced Technologies Group lead Eric Meyhofer.

As part of the wind-down, Uber has let go 300 of its test drivers. This comes after the state of Arizona in March officially barred Uber from testing its autonomous vehicles on public roads.