Cabs block Mayo Avenue as taxi drivers protest Uber in Buenos Aires, Argentina on April 12, 2016.
Uber launched its service in Argentina's capital Tuesday and said more than 20,000 Uber drivers were now available in Buenos Aires.
Argentinian cab drivers park their taxis on Mayo Avenue in Buenos Aires on April 12, 2016.
"(Uber is) totally illegal because they're trampling on 38,000 taxi drivers who are paying passenger insurance and all the city requirements so we can work legally," Daniel Capella, who has been a cabbie for 23 years, told The Associated Press.
Taxis block Mayo Avenue. The protest caused headaches for commuters during the evening rush hour.
Taxis block Mayo Avenue in Buenos Aires. Roughly translated, the sign in the cab reads: "Uber = fake cabs."
The Buenos Aires mayor's office has warned that Uber is not authorized to operate yet because it doesn't meet the requirements for transporting passengers.
A sign on a cab reads, "Uber = Road Insecurity" during a taxi drivers' protest against Uber along Mayo Avenue in Buenos Aires.
Argentinian cab drivers voice their anger during a protest against Uber in Buenos Aires.
Uber began in 2009 and is now operating in 64 countries. Its drivers have previously faced angry protests in Mexico City, Paris and other cities.
A man rides his bicycle past taxis blocking a main avenue in Buenos Aires.
A taxi driver holds a sign that says in Spanish "Uber equals job loss" as he and other cabbies block a main avenue in Buenos Aires.
A woman complains as taxi drivers block one of the main avenues in Buenos Aires on April 12.