A Tesla vehicle crashed and caught fire in Fort Lauderdale, Florida, on Tuesday, killing two people, local police said on Wednesday.
Autopilot self-driving capabilities of the Tesla were not expected to be involved, the NTSB said.
The NTSB said it was sending a team of four to investigate Tuesday's crash of a 2014 Tesla Model S that was reportedly travelling at high speed when it struck a wall and caught fire.
The crash is under investigation, the NBC Miami report said.
Seabreeze Boulevard from the 17th Street Bridge to Harbor Drive was shut down for the investigation, according to Fort Lauderdale Fire Rescue.
Tesla is now being probed by the National Transportation Safety Board (NTSB) for a fatal crash in March in which a Tesla vehicle's autopilot system was in use. The NTSB said Tesla had improperly released information related to the crash before it had been properly vetted.
While it was not immediately clear what caused the accident, there were also no reports that autopilot was a factor in the crash. Tesla had said it withdrew from the investigation, and that the agency had violated its own rules by releasing "incomplete information to the media".
"We don't believe this is right and we will be making an official complaint to Congress".
"Our thoughts are with the families and friends affected by this tragedy", Tesla said in a statement.
Huang's hands were "not detected on the wheel for six seconds prior to the collision", Tesla said in the blog.