Dead fish wash up on shores of Rio bay near Olympic venue

A heron is pictured on the banks of Guanabara Bay, at the Niteroi port near Rio de Janeiro in this file picture REUTERS/Ricardo Moraes

RIO DE JANEIRO (Reuters) - Thousands of dead fish washed up on the shores of Rio's Guanabara Bay on Wednesday, not far from where events are being held at this year's Olympic Games, environmental officials said.

The incident was the latest involving water quality in the bay, where sailing, open water swimming, and triathlon races are due to take place at the Games in August.