DETROIT -- U.S. road safety regulators have sent a team to investigate a crash involving a Tesla that may have been operating on a partially automated driving system when it struck a student who had just exited a school bus.

The National Highway Traffic Safety Administration Friday that it will probe the March 15 crash in Halifax County, North Carolina, that injured a 17-year-old student. The State Highway Patrol said the driver of the 2022 Tesla Model Y, a 51-year-old male, failed to stop for the bus, which was displaying all of its activated warning devices.

Sending special investigation teams to crashes means that the agency suspects the Teslas were operating systems that can handle some aspects of driving, including Autopilot and “Full Self-Driving.” Despite the names, Tesla says these are driver-assist systems and that drivers must be ready to intervene at all times.

A message was left Friday seeking comment from Tesla.

Tillman Mitchell, a student at the Haliwa-Saponi Tribal School in Hollister, had just exited the bus and was walking across the street to his house when he was hit, according to the Highway Patrol.

He was flown to a hospital with life-threatening injuries but was listed in good condition two days after the crash.