AIGLE, Switzerland - A cyclist in the Tour de France tested positive for doping, the sport's governing body said Wednesday.
The UCI said it won't disclose the rider's name, team or nationality pending completion of the testing process. The initial positive finding must be confirmed by analysis of the backup sample.
"The UCI received today a report of the anti-doping laboratory of Paris stating an adverse analytical finding following an anti-doping test carried out at the Tour de France 2006," the statement said.
The UCI said the rider, his team, the national federation and the national and world anti-doping authorities had been informed.
USA cycling spokesman Andy Lee said the organization hasn't been contacted by UCI.
U.S. Anti-Doping Agency spokeswoman Carla O'Connell said the group had no comment.
Tour spokesman Mathieu Desplats expressed surprise at the result and said race officials would await final results before taking any action. He would not comment further.
The French lab that conducted the tests could not be reached for comment Wednesday night.
The Tour de France finished Sunday, with American cyclist Floyd Landis winning the three-week race after the final ride through central Paris.
On the eve of the Tour's start, nine riders - including pre-race favorites Jan Ullrich and Ivan Basso - were ousted, implicated in a Spanish doping investigation.
The names of Ullrich and Basso turned up on a list of 56 cyclists who allegedly had contact with Spanish doctor Eufemiano Fuentes, the doctor at the center of the Spanish doping probe.