SAN FRANCISCO (CBS SF) – Drivers in the Bay Area, New York and other big cities say they are increasingly experiencing unwanted passengers climbing in the back seat of their cars.

READ MORE: California Health Officials 'Closely Monitoring' New COVID Omicron Variant

Dozens of people have taken to social media to complain about total strangers assuming that they were working for the San Francisco-based cab-alternative. The system, which operates in 44 countries, requires drivers to create an account with payment info before they can hail a ride using the company’s app.

TRENDING NOW:

Some drivers say Uber users have mistaken them more than once for their ride.

READ MORE: One Dead, Two Wounded In Early Morning San Francisco Shootings

Based on Tweets, Prius and SUV drivers appear to be the primary victims of the confusion.

MORE NEWS: Sharks Place Suspended Forward Evander Kane On Waivers

Some say the mistaken identity is a particular issue when operating late at night when people have been drinking. The company says real drivers undergo a background check, which includes a criminal records screening.