Uber was today refused a licence to operate in London after transport chiefs accused the app firm of risking passenger safety.
Transport for London said the company was 'not fit and proper' to hold a minicab licence. Uber was expected to appeal the decision.
TfL claimed at least 14,000 trips involved uninsured drivers who were able to exploit vulnerabilities in Uber's software.
Uber began operating in London in 2012. The company, has an estimated 50,000 drivers.
Uber was granted a temporary two-month licence in September following an earlier decision by TfL to refuse an application to operate.
The explosion in minicab licences has been blamed by TfL for significantly increasing congestion.
Jamie Heywood, Uber