The US National Highway Traffic Safety Administration has announced it has opened a special investigation into a recent crash of a Cruise self-driving vehicle in California that resulted in minor injuries.

Reuters reports the auto safety agency did not identify the specific crash, but a Cruise vehicle operating in driverless autonomous mode was involved in a crash involving minor injuries on June 3 in San Francisco, according to a report filed with the California Department of Motor Vehicles.

The state agency told Reuters it “has had conversions with Cruise officials regarding the incident.”

Self-driving car maker Cruise, which is majority-owned by General Motors said it was not issued a citation by police in the incident. Cruise said it had provided NHTSA with “routine information” the agency had sought in its special crash investigation.

Cruise has recently started charging for driverless rides in the city.

(Picture – Cruise)