Topline

The National Highway Traffic Safety Administration opened an investigation into a fatal crash last Friday, multiple outlets reported, days after a Tesla driver who was allegedly using his car’s Autopilot feature slammed into a woman’s house, killing a 76-year-old grandmother.

The NHTSA also opened a special crash investigation into the collision, the Wall Street Journal first reported on Monday, as the case remains under investigation by the Harris County Sheriff's Office.

The deadly crash took place in Katy, a Houston suburb, when the driver of a Tesla Model 3 left the roadway at a “high rate of speed” and slammed into a brick home, according to a report from the Harris County Sheriff’s Office.

The driver, identified in the report as Michael Butler, was cooperative and did not show signs of intoxication, and said he was using his car’s automated driving assistance program—the system Tesla calls Autopilot.

The victim, identified as Marcela Avila, was a 76-year-old grandmother, her family told local station KHOU 11, and was transported by helicopter to a hospital where she was eventually pronounced dead from injuries sustained during the crash.

This is a breaking story and will be updated.