Uber is appealing the city of London, UK's decision to revoke the ride-hailing company's license to operate in the British capital.

The "Transport for London" (TfL) agency cited a "pattern of failures" that put passengers at risk.  TfL had previously suspended Uber's license in 2017 over concerns with the company's approach to safety, specifically:  The company allowed at least 14,000 trips by people who presented themselves as official Uber drivers but were not.  The fake drivers uploaded their photos to actual driver's accounts, which in turn led to passengers riding with drivers who were not who the passengers thought they were

"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 reportedly 45,000 drivers in London and around 3.5 million people who regularly use the service.  Those drivers will be allowed to operate in London while Uber appeals the ruling.