Taxi service Uber renewed self car’s test in three days after freezing of the project due to the accident of one of the drones in Arizona.

After a short investigation the company concluded that the self car can be returned to the roads in the cities where the test took place – in Tempe, Pittsburgh and San Francisco.

In Uber did not disclose details of the investigation. US law enforcement official report will be ready in the nearest week, but police have found no fault car without a driver in the accident.

Accidents involving drone-based Volvo XC90 held on Friday, 24 March. During the incident, two people managed machines were damaged, robomobile collapsed on side.