The blaze broke out around noon on Tuesday on the 11th floor of the building and spread through several floors, emergency services said.
Alberto Crescenti, head of Buenos Aires emergency services, told local media the fire had "extended all the way to the 15th floor".
More than 100 people were evacuated after a fire broke out in a luxury residential tower in the Argentine capital of Buenos Aires.
The 50-floor building is the highest residential building in the city and located in the exclusive neighbourhood of Puerto Madero.
Fire spread through several floors of the 50-floor building.
