More than 3000 indigenous Brazilians have descended on the capital Brasilia for the annual “Free Land Camp” to denounce an alleged “unprecedented” rollback of indigenous rights in the country.

Indigenous rights to traditional lands are enshrined in the constitution, however in practice their rights are often curtailed by “loggers, land grabbers and wildcat miners.”

Al Jazeera last week reported killings over land and resources had peaked to their highest number since 2003, leading the UN Environmental Office to yesterday condemn the violence.

Brazil is home to roughly 900,000 indigenous people of more than 200 tribes, who mostly live in the Amazon region.