The United States government has launched a second federal investigation into a recent Tesla crash in Texas that allegedly occurred while the vehicle’s driver-assistance technology was active.

The accident resulted in the vehicle striking a residential home and killing a 76-year-old woman.

The victim, Martha Avila, died when the Tesla Model 3 crashed into her home in Katy, a suburb of Houston, on June 19.

On Wednesday, the National Transportation Safety Board announced it had opened an investigation into the incident, two days after the National Highway Traffic Safety Administration confirmed it was also examining the crash.

In a related development, Avila’s family has filed a wrongful death lawsuit against Tesla.

The suit alleges that the company was grossly negligent and failed to adequately warn users about defects in its Autopilot and Full Self-Driving systems, which were reportedly engaged at the time of the crash.

The family argues that these alleged defects contributed to the fatal incident and that Tesla should be held liable.

According to the lawsuit, Avila’s daughter, Jennifer Barbour, and her husband, Justin Barbour, said the driver of the Tesla Model 3, Michael Butler, told authorities that he had activated the vehicle’s Autopilot system before it crashed through the front wall of Avila’s home in Katy, trapping and fatally injuring her.

Avila was transported to a nearby hospital, where she later died from her injuries. Justin Barbour also sustained injuries in the crash.

The lawsuit, filed in a Texas state court, seeks more than $1 million in damages as well as punitive damages, alleging that Tesla acted with “reckless disregard for a substantial risk of severe bodily injury.”

The Harris County Sheriff’s Office, which responded to the incident, said the driver reported that a driver-assistance feature was in use at the time of the crash.

Tesla and its chief executive, Elon Musk, did not immediately respond to requests for comment.