French taxis are on strike around the country, snarling traffic in major cities and slowing access to Paris' Charles de Gaulle airport after weeks of rising and sometimes violent tensions over Uber.

Despite repeated rulings outlawing Uber's lowest-cost service, its drivers continue to ply France's roads and the American company is actively recruiting. Uber's more expensive livery service is still legal.

Taxi drivers complain that the company unfairly undercuts them and in recent weeks nearly 100 Uber drivers have been attacked, sometimes while carrying customers. In one case, a taxi passenger was left with a broken face and black eye after he praised Uber.

The ITele network says taxi drivers overturned an Uber-style livery car; at the airport, police were checking entering cars to avoid violence.