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 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.

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.

Three young individuals – since identified as Soren Dixon, Jack Nelson, and Krysta Tsukahara by the City of Piedmont – were pronounced dead at the scene. The person pulled from the Cybertruck suffered burns and was taken to an area hospital in critical condition but has not been identified. Their current condition is unknown.

A USC community continued to grieve after it was revealed a student athlete was among the people killed in a fiery Tesla Cybertruck crash on the day before Thanksgiving in Northern California.

PIEDMONT, Calif. -- Three people are dead and one is injured after a solo vehicle crash early Wednesday, police say. A Tesla Cybertruck crashed at Hampton road and King Avenue just after 3 a.m., in Piedmont, California.

The National Highway and Traffic Safety Administration is in the process of reviewing details about last week's fatal Tesla Cybertruck crash in Piedmont that left three young adults dead and a fourth critically injured.

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.