It has been learned that another Tesla Model X crossover vehicle has crashed, and the driver is saying that the semi-autonomous driving Autopilot system was activated.

This report follows news of another Model X accident in Pennsylvania last week when Autopilot was in use, and a fatal Florida crash in June involving a Model S sedan.

According to Electrek, the incident was made public by a friend of the owner who provided a brief description of the accident along with photos on the Tesla Motors Club Website.

The few details provided say the Model X was traveling on state highway MT-55 near Whitehall, Montana at around 2:00 a.m.

Traveling between 56 and 60 mph with Autopilot active, the car hit a number ofwood stakes that were in the ground to support a wood guard rail.

SEE ALSO: NHTSA Opens Preliminary Evaluation Following Death of Tesla Model S Driver Using Autopilot

Photos reveal that the front passenger side was torn off, including the wheel, and the car appears to be totaled.

Both occupants of the vehicle were apparently unharmed.

Tesla says that Autopilot should not be engaged on roads without a center divider, which the two-lane MT-55 highway does not have.

While the system is capable of taking control of the car’s steering and brakes, a pop up screen instructs the driver to keep hands on the steering wheel at all times.

This message is obviously disregarded by several drivers who post videos on Youtube showing hands-free Tesla driving.

The National Highway Transportation Safety Administration (NHTSA) has opened an investigation of the deadly Florida crash.

Tesla has not commented on this latest crash.