Uber lost its operating licence in London.

London's transport regulator  stripped Uber of its licence to operate from the end of the month, affecting over 40,000 drivers in a huge blow to the taxi app today.

The final day of Uber's licence will be on Sep. 30

Reasoning the move LTF said,"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."

Uber quickly announced plans to appeal. Uber will be able to operate in October while any appeal is being considered, the company said in a statement.

Uber has faced criticism from unions, lawmakers and traditional black cab drivers over working conditions in London.

-