India, April 25 -- A Tesla that may have been operating on the company's Autopilot driving system hit and killed a motorcyclist near Seattle, raising questions about whether a recent recall went far enough to ensure Tesla drivers using Autopilot pay attention to the road.

After the crash Friday in a suburban area about 15 miles (24 kilometres) northeast of the city, the driver of a 2022 Tesla Model S told a Washington State Patrol trooper that he was using Autopilot and looked at his cellphone while the Tesla was moving.

"The next thing he knew there was a bang and the vehicle lurched forward as it accelerated and collided with the motorcycle in front of him," the trooper wrote in a probable-cause document.

The 56-year-old driver was a...