CNN —The National Highway Traffic Safety Administration is investigating two autonomous driving companies following incidents in which the vehicles behaved erratically and sometimes disobeyed traffic safety rules or were involved in crashes. The investigations involve Waymo, the self-driving technology subsidiary of Google’s parent company Alphabet, as well as Zoox, the autonomous vehicle subsidiary of Amazon. In cases where the human driver was present, the Waymo vehicle’s autonomous driving system was shut off moments before a collision. NHTSA is also investigating self-driving vehicles operated by Zoox, the autonomous technology subsidiary of Amazon. In one case, a motorcyclist was slightly injured in the crashes, in the other a Zoox safety driver was hurt.

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Persons: “, Waymo, Zoox braked, ”, Cruise Organizations: CNN, Traffic, Administration, Amazon, NHTSA, Zoox, Toyota Highlanders Locations: Waymo