Two men were killed in Texas after a Tesla vehicle they were in crashed on Saturday and caught fire, authorities said, according to The New York Times.

Neither of the men were behind the wheel.

Mark Herman, the Harris County Precinct 4 constable, said that physical evidence from the scene and interviews with witnesses led officials “to believe no one was driving the vehicle at the time of the crash.”

The vehicle, a 2019 Model S, was going at a “high rate of speed” around a curve at 11:25 p.m. local time when it went off the road about 100 feet and hit a tree, Constable Herman said.

The crash occurred in a residential area in the Woodlands, an area about 30 miles north of Houston.

The two men who were killed were 59 and 69 years old. One was in the front passenger seat and one in the rear seat, Constable Herman said.

He said that minutes before the crash, the men’s wives watched them leave in the Tesla after they said they wanted to go for a drive and were talking about the vehicle’s Autopilot feature.

The National Highway Traffic Safety Administration said last month that it was investigating nearly two dozen crashes involving Teslas that either were using Autopilot or might have been using it.

Regulators have raised concerns about the batteries used in electric vehicles. The National Transportation Safety Board warned in a 2020 report that the batteries can pose safety risks to emergency responders.

Tesla, which on its website calls Autopilot the “future of driving,” says the feature allows its vehicles to “steer, accelerate and brake automatically within its lane.” However, it warns that “current Autopilot features require active driver supervision and do not make the vehicle autonomous.”