I watched over two hours of footage of Tesla's robotaxi service: I saw an Uber-like app experience, the in-car interface, and miles of Austin streets.

The NHTSA contacted Tesla after several videos showed incidents involving its robotaxis after the service was launched in Austin on Sunday.

The automaker deployed a small fleet of self-driving taxis in Austin, Texas, on Sunday, marking the first time its cars have carried paying passengers without human drivers. The rides were being offered for a flat fee of $4.

Tesla’s much-publicized robotaxi service began this weekend — but only in one neighborhood in Austin, Texas, only for a select group of the company’s fans and only with a Tesla employee in the front passenger seat.

A group of social media influencers and Tesla investors were invited to participate in the Robotaxi trial, with many posting about their experiences online. Passengers were accompanied by a Tesla employee in the front passenger seat to oversee the ride and intervene if necessary.