The Olympics may still be in only its second day, but there are already serious concerns about security after yet another incident in Rio.
Two Australian rowing coaches were robbed at knife-point on their way home from the opening ceremony, according to the Sydney Morning Herald.
Two boys believed to be in their teens stole mobile phones and credit cards after grabbing one of the coaches by the throat and forcing him to the ground.
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The coaches were wearing their Australia tracksuits at the time. Athletes and coaches have now been advised not to walk after 6pm in the area of Ipanema and not to wear their colours.
Australian Olympic Committee spokesman Mike Tancred has questioned the security processes in Rio, which it is expected will be stepped up.
This year's competition takes place amidst a tense atmosphere in the Brazilian capital, with heightened security fears after a controlled explosion on a suspicious package at the men's road cycling race on day one.
And the Australians seem to have felt the brunt of the lax security, being on the receiving end of several thefts.
Team Australia didn't initially tell their rowers about the mugging in case it affected their performance at the Games.
Is Rio prepared for the Olympics? Have your say in the comments.