#Rio2016 - Olympics organisers in Rio have a new headache alongside Zika concerns and rising crime – the city's sailing waters are turning boats brown.
After Chilean 49erFX squad Team Gumucio posted the above video to Facebook, further reports have emerged of sailors getting caught in an oil slick on Guanabara Bay.
"We've never seen anything like this. It was all over the place," Finnish sailor Camilla Cedercreutz told the Associated Press after the slick stained the white hull of her boat brown.
It appears sailors training in Rio's waters ahead of next month's Games now have to add industrial pollution to their list of issues with the Olympic aquatic venue on top of floating debris and high levels of pathogens.