The presidential palace in Buenos Aires was the scene for a night-time anti-government protest that drew thousands of people.
Many banged pots and pans in a highly symbolic gesture, stirring memories of demonstrations during Argentina’s devastating economic crisis a decade ago.
This time President Cristina Fernandez is under fire over the economy and corruption.
“We’re protesting over the decline of our institutions, over the courts coming under political control, the lack of independence of these authorities,” said one man.
“We’re going through a very difficult time and we have no answer from the government. No one shows their face and, when they do, they lie. No-one ever tells the truth,” said a female protester.
Since Fernandez was re-elected last year her popularity has fallen, amid high inflation and slow growth.
A move to renationalise Argentina’s biggest energy company was broadly supported but restrictions on purchasing dollars have provoked anger.