About 300,000 residents of Cascavel in Brazil's western Parana state were left without drinking water when engine oil from an overturned tank truck polluted a local river, Brazilian media said on Sunday.
More than 5 metric tons of oil products leaked to the road and then to the river via drainage systems.
The local environmental authority IAP estimated environmental damage as "significant."
RIO DE JANEIRO, February 20 (RIA Novosti)
