(BBC News) A self-driving shuttle bus in Las Vegas was involved in a crash on its first day of service.
The vehicle - carrying “several” passengers - collided with a lorry driving at slow speed.
Nobody was injured in the incident which city officials say was the fault of the human driver of the lorry. The man was subsequently given a ticket by police.
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The shuttle is the first of its kind to be used on public roads in the U.S.