#Rio2016 - 'Tropical heat' has been blamed by Rio government officials for the thousands of dead fish that washed up this week on the shores of Guanabara Bay, venue for this summer's Olympic sailing events.
But as Scuttlebutt Sailing News reports, locals are not so sure – believing contamination of the bay's notoriously polluted waters to be the real cause.
Just last month it emerged that sailors who ingest just three teaspoons of water from the planned Olympic sailing courses have a 99% chance of contracting a viral infection.
City authorities, meanwhile, also investigating whether the fish – mostly sardines – may have been illegally discarded by commercial fishermen.
It comes nine months after a similar fish kill clogged the Olympic rowing venue at the Rodrigo de Freitas Lagoon – a common occurrence in a body of water that periodically suffers from shortage of oxygen.