The protest — against last week's impeachment of left-wing president Dilma Rousseff and her replacement with veteran conservative Michel Temer — reportedly turned violent after police blocked the progress of the marchers.
Brazil’s suspended president mounted a defiant and emotional defense of her presidency on Monday during the senate impeachment trial that is due to decide whether to oust her for good.
Projections suggest senators will vote to remove Rousseff permanently from the presidency, putting a final end to almost 14 years of Workers’ Party rule that had initially turned Brazil into a symbol of hope on the world stage.
The ruling comes amid high political tension in Brazil as the effort to permanently remove suspended president Dilma Rousseff from power approaches its culmination.
The Rio 2016 OIympics began in the midst of a political crisis, a deep recession, and bad press that has already branded them a disaster.
The Brazilian navy said that one of the pilots managed to land his plane safely, but the other crashed into the sea. A massive search for the second pilot is ongoing.
The first major poll to evaluate support for Michel Temer has given him an approval rating of just 13 percent. Rousseff set an historic low of 10 percent in March.