Uber challenges ruling on drivers' rights at court of appeal

Protest held outside court in London as firm appeals against employment tribunal ruling

Uber has launched a court challenge against a landmark legal ruling that set a precedent for millions of gig economy workers.

The attempt to overturn the employment tribunal ruling that the company's drivers were workers came as a former driver involved in the case claimed that if the taxi-hailing app were to win its appeal, Uber's business model could expand into every sector of the economy.