India, July 8 -- Waymo is expanding its driverless taxi service to four new U.S. cities. The company announced it will soon start operating in Denver, San Diego, Las Vegas, and Tampa, Florida, according to Waymo's announcement. The first rides will only be for Waymo employees. This employee-only phase is meant to test the service before it becomes available to everyone.

The company says the public rollout will happen after the employee testing. In Denver, Waymo spokesperson Sandy Karp said public rides are expected later this year. Waymo already runs driverless taxis in more than 10 cities across the U.S. It is currently the biggest robotaxi operator in the country.

Alphabet owns Waymo, the company is the self-driving vehicle division o...