Black-cab drivers' Uber protest brings London traffic to a standstill

Organisers say about 8,000 drivers took part to highlight threat to their trade from TfL's licensing of taxi-hailing app

Taxi drivers brought central London to a standstill to highlight the threats to their trade from Uber and changing regulation.

Organisers said about 8,000 drivers took part in the protest on Wednesday afternoon, as traditional black cabs blocked lanes the length of Whitehall and halted much traffic around Westminster and the West End.