A stunning crash in Piedmont that killed three college students, leaving a third with severe injuries, has triggered deep suspicion of the vehicle involved: a Tesla Cybertruck, the electric pickup with a space-age look — and a history of engineering mishaps.

A fatal Tesla Cybertruck incident in Piedmont is being investigated by the National Highway and Traffic Safety Administration and California Highway Patrol after three Piedmont high school graduates died and another was hospitalized.

The Piedmont High School graduates were killed when the truck they were driving crashed at Hampton Road between Sea View and King avenues about 3 a.m. Wednesday. The truck caught fire after the crash and one person, who has not been identified, was pulled by a passerby and taken to a hospital.

Family and friends are mourning Soren Dixon, Jack Nelson and Krysta Tsukahara, all college students who graduated from Piedmont High School in 2023.

The NHTSA, in general, often investigates crashes involving electric vehicles with self-driving features. Piedmont officials said last week that speeding is possibly a contributing factor, but they did not say whether the driver assistance features on the Cybertruck were engaged at the time of the crash.

Over the weekend, the city of Piedmont released the names and brief statements from the families of three 2023 Piedmont High School graduates who died in a fiery Cybertruck crash on the day before Thanksgiving.