U.K.'s regulator of public transportation, Transport for London (TfL) has decided not to renew Uber's license to operate in the city.

Expiring on 30^th of September, TfL said in a statement that Uber London is not fit and proper to hold a private hire operator license as "Uber's approach and conduct demonstrate a lack of corporate responsibility in relation to a number of issues which have potential public safety and security implications,"

The regulator also claimed that Uber is using a software called Greyball that can be used for blocking regulators from gaining full access to their app and criticised their approach to reporting offenses and background checks on drivers.

With nearly 40,000 of its London-based drivers or one third of the private hired vehicles in the city affected, Uber will continue to operate until their appeal processes have been exhausted.