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Fifty Tons of Dead Fish Wash Up in Mexican Lake

Mexican authorities are investigating after thousands of fish died from unknown causes.
Image: Thousands of dead fish
Fishermen, firefighters, and Agriculture, Cattle, Rural Development, Fish and Food Secretary personnel join together to collect dead fish in Cajititlan lake, in Mexico's Jalisco state, on August 31, 2014. Ulises Ruiz Basurto / EPA

Mexican authorities are investigating after hundreds of thousands of fish died of unknown causes. Fish weighing nearly 50 tons have been found floating in Lake Cajititlan in less than a week, the European Pressphoto Agency reports.

Effluent from local wastewater treatment plants could have caused the fish to die, Jalisco state's secretary for the environment told the BBC.