A solo vehicle crash involving a Tesla Cybertruck left three young people dead early Wednesday morning in the Northern California city of Piedmont, authorities said.

The sole surviving occupant was rescued from the burning Tesla Cybertruck by a witness. Investigators doubt that a mechanical issue with the electric vehicle caused the crash. The three victims who died were 2023 graduates of Piedmont High School in California.

Three people were killed and one seriously injured early Wednesday when a Tesla Cybertruck crashed and caught fire in Northern California, officials said. Piedmont Police Chief Jeremy Bowers said speed was likely a factor in the single-vehicle collision,