Nearly a thousand police officers from Brazil's Ceara, Espirito Santo, Gerais, Minas, Parana and Santa Catarina provinces protested pension reform.
The protesters in Brasilia, the capital, trying to enter the area reserved for members of parliament and clashed with the police in the parliament.
Police officers trying to enter the parliament building, despite the obstacles, entered the building by breaking the windows at the entrance of the building. The protesters were imposed by their colleagues with pepper spray and tear gas.
Many policemen were reported to be affected from gas in the incident.
ILKHA