In a preliminary report by the US National Transportation Safety Board (NTSB), it was revealed that the driver killed in the recent Autopilot crash of a Tesla Model S, was speeding. The NTSB said in its initial findings that the car was travelling 119 km/h in a 105 km/h zone during the time of the accident.

During the May 7 incident, Joshua Brown was killed when his Tesla, with Autopilot engaged, drove under a tractor trailer, colliding with the windshield of the electric vehicle. According to a police report, the vehicle’s roof “was torn off by the force of the collision.”

The authorities has already confirmed that the Model S’ Autopilot system was active during the incident, which features Traffic-Aware Cruise Control and AutoSteer lane-keeping assistance. “Speeding alone would not be considered the cause of a vehicle crash, but could be a contributing factor,” said NTSB spokesman Christopher O’Neil in a report by Automotive News.

Ever since the fatality, Tesla is currently facing a separate investigation by the US National Highway Traffic Safety Administration (NHTSA) to determine if the system worked according to expectations, and if it poses an unreasonable risk to driver safety.

Tesla CEO Elon Musk recently came out to clarify the carmaker’s use of the term “beta” in reference to his company’s Autopilot system. In several Twitter posts, Musk explained that the system comes with an explicit warning to ensure that drivers are ready to take over controls if needed. He added that the system would need to record at least one billion miles of real-world driving before it can leave the “beta” phase.