Amazon subsidiary Zoox has claimed a major breakthrough for the robotaxi industry after its self-driving vehicles, which have no steering wheels or other manual controls, took to California public roads over the weekend.

Use of the boxy electric vehicles is to be limited to full time employees who will be able to use the service only to travel the short distance between two Zoox headquarters buildings about a mile (1.6km) apart in Foster City, near San Francisco, during regular office hours, the company said in a blog post…

The service was tested during the weekend and will be made available to Zoox employees beginning in the next few months, according to the company.