Taxi drivers in Rio de Janeiro are planning a protest Friday morning in the immediate vicinity of Olympic Park to protest the use of ride-sharing program Uber, according to the U.S. Consulate General's office.
 
The office sent a message to U.S. citizens in Brazil on Thursday night, based on information they received from organizers of the planned strike. Those organizers say they're planning to close avenues around Olympic Park, and doing so at rush hour could snarl traffic.
 
"Such an event would affect transport for visitors to venues in the Olympic Park," the statement said.
 
There was no immediate comment from Rio Games organizers about whether they were concerned about the planned strike.