French President Francois Hollande yesterday called for the Uber taxi service to be shut down, but the company refused to comply until a ruling by the country's top court.
After scenes of violence at a strike by taxi drivers in Paris this week, Mr Hollande accused the firm of failing to respect "social rules" and said: "The Uber group must be dissolved, declared illegal and the vehicles must be seized."
But an spokesman for Uber has insisted the service will continue until a court ruling.
France's top security official, Interior Minister Bernard Cazeneuve, called the company's stance "cynical and arrogant".
Taxi drivers had taken to the streets of Paris over claims that the service was cutting prices and ruining their livelihoods.