INDIANAPOLIS (AP): Indianapolis police investigating a fiery crash that killed two people are looking into whether the electric car’s autopilot was engaged.

Witnesses reported the Tesla was travelling at a high rate of speed about 1 a.m. Thursday when it hit a tree, crashed into a building and caught fire, leaving a trail of burning battery components.

Authorities say the near north side crash killed 27-year-old driver Casey Speckman and 44-year-old passenger Kevin McCarthy.

Police spokesman Maj. Richard Riddle says investigators were looking at whether the car’s autopilot was engaged, and if so whether that was a factor in the crash.

When Tesla updated its autopilot software earlier this year, the company said the system would not go more than 5 mph over the speed limit on an undivided highway.