A near miss occurred on a California road between two driverless cars this week, according to a Reuters report.
Google has driven more than a million miles in these vehicles since 2009 and had finally hit the streets of California this week.
The tech giant said it would give monthly updates of accidents. According to the May accident report, its automated cars have been involved in 12 accidents since 2009.
The company said none of these accidents were caused by car. The California Department of Motor Vehicles also says in all cases, the self-driving cars were not at fault.