Rio de Janerio: German diver Stephan Feck has described the stench coming out of Rio's "green pool", which was shut down for maintenance, as smelling like a "fart".

Rio 2016 officials cancelled training for the divers on Friday morning for maintenance purposes, but insist it remains of no risk to the health of the athletes.

Not green with envy: The diving pool. Credit:Getty Images

But Feck, who posted a photo on Facebook standing beside the blocking his nose, wasn't too impressed.

"The moment you want to do some workout and the pool is closed," he posted.