
About 300 taxis blocked the road in front of the city hall in the huge Brazilian city for more than three hours as their drivers let off firecrackers in protest.
Uber provides one-day helicopter service in India
Another group of taxis blocked access to the city's Congonhas airport, media reported.
The US firm currently operates in 58 countries and is valued at more than $50 billion.
Cutting out conventional taxis by connecting self-employed drivers to passengers online, it has infuriated cab firms and battled regulators worldwide.
Pakistani entrepreneurs launch ‘Uber for rickshaws’
Sao Paulo's mayor Fernando Haddad has vowed to regulate and tax Uber drivers, but taxi drivers want Uber banned from the city.
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