Self-driving bus caught in accident in Las Vegas

A driverless shuttle bus was in an accident on the first day the electric vehicle was being tested in Las Vegas.

But police said another vehicle with a human driver was the one at fault.

The new shuttle bus was cruising down S. Sixth St.  one block east from the Vegas Strip  around noon local time Wednesday when it collided with a delivery truck.

The bus, which can carry up to 11 people and communicate with traffic signals, stopped itself when its sensor noticed the truck backing up.