Uber CEO Dara Khosrowshahi apologized to Londoners after Transport for London (TfL) did not renew the ride-hailing company's license to operate in the city, according to a report by the Guardian.

"While Uber has revolutionized the way people move in cities around the world, it's equally true that we've got things wrong along the way," Khosrowshahi wrote in an open letter. "On behalf of everyone at Uber globally, I apologize for the mistakes we've made."

TfL, London's transportation authority, declared that Uber's license expired at the end of September, citing issues with how the ride-hailing service reported serious crimes and carried out background checks on drivers, as well as Greyball, software that would prevent officials from looking through Uber's app information, according to the report.

Uber plans to challenge the decision through the court and a petition to Sadiq Khan, the London mayor and the chair of TfL. The company has until Oct. 13 to appeal the decision and will continue operations in the meantime, says the report.

Khan said that he was pleased with Khosrowshahi's letter and that TfL would open plans to meet with Uber, according to the report.

Click here for the full Guardian report.