(London Independent) Vigilante citizens in a town in Arizona have slashed tyres, thrown rocks and even pointed guns at self-driving vehicles being tested in their neighbourhood, an investigation has revealed.

Police in Chandler recorded 21 incidents over the past two years in which the autonomous vehicles and their test drivers were targeted by local residents.

One incident on 24 October saw a man emerge from a park and slash the tyres of a Waymo vehicle stopped at an intersection. Earlier this year a Waymo test driver reported a man in shorts aiming a gun at his car when it passed the man’s driveway.

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