The alleged assault occurred on Nov. 16, Chicago police said, but no other details about the incident have been released, the Chicago Sun-Times reports. As of Wednesday, no charges had been filed.
Officials are now in contact with the victim as well as Uber personnel.
Uber was banned this week in New Delhi, India, where a driver with a history of sexual assault and criminal allegations was accused of raping a passenger.
The Chicago driver has been removed from Uber, a spokeswoman Jennifer Mullin said. “This is an appalling and unacceptable incident and, first and foremost, our thoughts are with the victim and her family,” Mullin said.
See Uber Protests From Around the World
French Taxi drivers burn tires as they protest in the southern city of Marseille on June 25, 2015 as they demonstrate against UberPOP, a popular taxi app that is facing fierce opposition from traditional cabs. Anne-Christine Poujoulat—AFP/Getty ImagesPolice officers in riot gear attempt to flip a car back onto it's wheels at Porte Maillot on June 25, 2015 in Paris. Protesters blocked roads to airports and train stations, overturning cars and setting tires on fire.Guillaume de Senneville—Demotix/CorbisHundreds of taxi drivers gather next to the Olympia Stadium to protest ride-sharing apps on June 11, 2014 in Berlin.Sean Gallup—Getty ImagesA demonstrator kicks a car, suspected of being a private taxi during a 24 hour taxi strike and protest in Madrid on June 11, 2014. Paul White—APA taxi driver listens to speeches by his colleagues, during an Europe-wide protest of licensed taxi drivers against taxi hailing apps that are feared to flush unregulated private drivers into the market, in front of the Olympic stadium in Berlin on June 11, 2014. Thomas Peter—ReutersTaxi drivers hold a banner during a protest in Barcelona on June 11, 2014. Josep Lago—AFP/Getty ImagesLondon taxi's line up on The Mall during a protest against a new smart phone app, 'Uber' on June 11, 2014 in London.Dan Kitwood—Getty ImagesTaxi drivers park their cars and honk the horn in protest on Pennsylvania Avenue, bringing street traffic to a stop as they demand an end to ride sharing services such as Uber X and Lyft on June 25, 2014, in Washington.PAUL J. RICHARDS—AFP/Getty ImagesAn Italian taxi driver distributes leaflets reading "Don't take an illegal taxi, take a white regular taxi" during a protest on June 11, 2014 in Rome.ANDREAS SOLARO—AFP/Getty ImagesTaxis drivers block a highway outside Paris, near Roissy on June 11, 2014, as they take part in a demonstration to protest the growing number of minicabs, known in France as Voitures de Tourisme avec Chauffeurs (VTC). Fred Dufour—AFP/Getty Images
