Uber increases unemployment and needs regulation, says Brazil's president

Sio Paulo, Rio de Janeiro and Brasilia have moved to ban the mobile application, while the San Francisco-based startup declines to comment

The president of Brazil, Dilma Rousseff, has criticised ride-sharing service Uber for increasing unemployment, adding to a chorus of labour concerns about the world's most valuable venture-backed startup.

Rousseff said local authorities must regulate the service, which has led conventional taxi drivers to stage protests and lobby lawmakers in Brazil's three biggest cities.