The processing of the ore involves crushing and drying , often inside the homes of villagers , resulting in the contamination of soil , '' Doctors without Borders explained in a statement . Doctors Without Borders says the death toll may be even higher . The contamination comes from villagers ' attempts to extract gold from ore . Hide Caption 3 of 7 Photos:
Doctors Without Borders says the death toll may be even higher . The contamination comes from villagers ' attempts to extract gold from ore . Hide Caption 3 of 7 Photos: