LONDON — Uber was stripped of its license to operate in London on Monday by the city's transport regulator, which cited a "pattern of failures" that put passengers at risk. The San Francisco-based company immediately said that it plans to appeal Transport for London's decision, labeling the move "extraordinary and wrong." Shares of Uber fell over 1% after the ruling. Because of the appeal, nothing will change for passengers and drivers who the use the Uber app for the time being. But the ban represents a huge blow to the ride-sharing firm, which has worked to improve its reputation as a friend rather than foe to regulators under current CEO Dara Khosrowshahi. TfL had previously suspended Uber's license in 2017, flagging concerns with the company's approach to safety. Following that initial decision, Uber was twice granted a temporary license to continue operating in the city — the first, a 15-month reprieve issued by a judge last year, and the second, a two-month permit granted by TfL in September. "Uber has made a number of positive changes and improvements to its culture, leadership and systems in the period since the Chief Magistrate granted it a licence in June 2018," TfL said. "This includes interacting with TfL in a transparent and productive manner." "However, TfL has identified a pattern of failures by the company including several breaches that placed passengers and their safety at risk," the regulator continued. "Despite addressing some of these issues, TfL does not have confidence that similar issues will not reoccur in the future, which has led it to conclude that the company is not fit and proper at this time."

Uber has 21 days to appeal the decision. "TfL's decision not to renew Uber's licence in London is extraordinary and wrong, and we will appeal," Jamie Heywood, Uber's regional general manager for Northern and Eastern Europe, said in a statement. "We have fundamentally changed our business over the last two years and are setting the standard on safety. TfL found us to be a fit and proper operator just two months ago, and we continue to go above and beyond." "On behalf of the 3.5 million riders and 45,000 licensed drivers who depend on Uber in London, we will continue to operate as normal and will do everything we can to work with TfL to resolve this situation." London is Uber's biggest European market and a key driver of its revenues beyond the U.S. It has faced increased competition in the U.K. capital from the likes of Estonian start-up Bolt and French rival Kapten. In its announcement, London's transport authority said it took issue with a change made to Uber's identification systems that allowed unauthorized drivers to upload their photos to other Uber driver accounts. According to TfL, this allowed them to pick up riders as though they were the booked driver in at least 14,000 trips.

"This means all the journeys were uninsured and some passenger journeys took place with unlicensed drivers, one of which had previously had their licence revoked by TfL," the regulator said. The watchdog also claimed that dismissed or suspended Uber drivers were able to create an account and carry passengers, and added "several insurance-related issues" led the regulator to prosecute the company earlier this year. "Over the last two months we have audited every driver in London and further strengthened our processes," Uber said of TfL's claims about unauthorized drivers being able to operate on its platform. "We have robust systems and checks in place to confirm the identity of drivers and will soon be introducing a new facial matching process, which we believe is a first in London taxi and private hire." Ahead of Monday's announcement, Uber had made a number of safety updates to its app in an apparent attempt to allay regulatory concerns. One tool it added was a button that users could press to flag discrimination experienced on a trip, while another would send out push notifications in the event that GPS data indicates a car crash may have taken place.

'Hammer blow'