Australian Paralympian Liesl Tesch has warned tourists and team mates to be on high alert in Rio after she was robbed at gunpoint.
The sailor and wheelchair basketballer was on a training ride with her physiotherapist at the weekend when two men jumped in front of them and demanded money.
Tesch said no one came to their aid, despite several people seeing it happen.
"I think he said dinero... which means money, so I lifted up my shirt and said, 'Look, I don't have any money,'" she told ABC News.
"He then said something else and pointed the gun at me and pushed me in the shoulder, and I just toppled over with my bicycle and he just grabbed my bicycle, and the other guy was wrestling the bicycle from our team physio. And they just rode off into the park. It was absolutely horrific."
She says it reinforces how dangerous Rio de Janiero can be, and how lucky she is to live in Australia.
Tesch won a sailing gold at London in 2012.
The Rio Olympics begins on August 5, and the Paralympics on September 7.