The Nobel laureate has been condemned for partnering with Hillary Clinton, an outspoken supporter of Israel's war against Hamas
It said 42 heavily armed, hooded men attacked the Kaiowa Guarani community in the village of Amambai, near the border with Paraguay, and shot the 59-year-old chief, Nisio Gomes.
FUNAI said other Indians might have been killed or kidnapped.
The incident marked the latest violence linked to land disputes in Brazil, where one percent of the population controls 46 percent of the cultivated land.
Guarani have been trying to recover a small portion of their original territories, but face violent resistance from wealthy ranchers and soya and sugar cane plantation owners.
The Nobel laureate has been condemned for partnering with Hillary Clinton, an outspoken supporter of Israel's war against Hamas
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