https://apnews.com/8c833b3e5d9c49cf97a10974126daad9

Federal investigators say a Tesla SUV using the company's semi-autonomous driving system accelerated just before crashing into a California freeway barrier, killing its driver.

The National Transportation Safety Board also says crash data shows the SUV did not brake or steer away from the barrier in the three seconds before the crash. The agency says it now will examine whether the Tesla Autopilot system performed as designed.