Agents of Brazil’s environmental agency check an illegal gold mine during an operation in Roraima state, Brazil, on April 18, 2016. #

A Yanomami Indian stands near an illegal gold mine during an environmental agency operation in Roraima state on April 17, 2016. #

An agent of Brazil’s environmental agency burns a miners camp on the banks of Uraricoera River on April 15, 2016. #

A mining ferry burns on the banks of Uraricoera River during an operation against illegal gold mining on indigenous land in Roraima state on April 15, 2016. #

Gold prospectors are detained by agents of Brazil’s environmental agency on the Uraricoera River on April 16, 2016. #

An agent of Brazil’s environmental agency takes cover as an illegal gold dredge burns down on the Uraricoera River on April 15, 2016. #

People successfully flee with groceries and fuel on a boat on the Uraricoera River escaping an operation against illegal gold mining on April 15, 2016. #

A village of indigenous Yanomami in the heart of the Amazon rainforest, in Roraima state, Brazil, on April 18, 2016. #

A man flees successfully near the banks of Uraricoera River during an environmental agency operation against illegal gold mining on April 15, 2016. #

An agent of Brazil’s environmental agency shows ammunition found in a camp used by gold miners in Roraima state on April 18, 2016. #

Yanomami Indians follow agents of Brazil’s environmental agency in an illegal gold mine on April 17, 2016. #

Equipment at an illegal gold mine burns during an environmental agency operation in the heart of the Amazon rainforest on April 17, 2016. #

An agent of Brazil’s environmental agency walks beside an illegal gold dredge as it burns on the banks of Uraricoera River on April 15, 2016. #

An illegal gold dredge goes up in flames on the Uraricoera River in Roraima state, Brazil, on April 15, 2016. #