France's highest administrative court on Friday backed restrictions on unlicensed taxi services in a decision adding to U.S. start-up Uber's legal troubles.
The San Francisco-based company, which connects drivers with passengers through a smartphone app, faces legal challenges in several European countries where licensed taxis drivers have protested against what they see as unfair competition.
France's constitutional council said that unlicensed taxis had to return to their bases after dropping off a customer or await new fares from a parking lot, upholding a ban on them driving around looking for new clients.
The court also backed restricting apps like Uber's that both indicate the location of near-by taxis to potential clients on their smart phones and their availability.
A Paris appeals court had been waiting for the decision before ruling on whether to ban Uber's unlicensed taxi service, known as UberPOP.