Pierre Bordry said the warrant was issued on January 28 by a judge of the court in Nanterre, outside Paris, because Landis did not answer a summons to testify last November in the hacking case.

According to Bordry, the warrant applies to any country with which France has an extradition agreement, and the judge can have the 34-year-old Landis arrested at his discretion if he travels to any of those countries.

However, according to judicial sources cited by French media, the warrant applies only to French national territory.

The case dates back to the 2006 Tour de France, which Landis won.

But he was later stripped of the title and banned from cycling for two years for testing positive for testosterone after the decisive 16th stage, which he won with an explosive solo escape.

Bordry said that in September 2006, as Landis was defending himself against the doping charges, someone hacked into the AFLD's computer system and pirated some files.

He would not say if the stolen files were connected with Landis's case, but Landis and his former coach, Arnie Baker, were summoned to testify in France to explain how they had obtained information related to their defense.

Investigators reportedly traced the hacking to a computer address allegedly used by Baker.

Landis told the Los Angeles Times that he had not hacked into anything and that he has not been served with a warrant.

"No attempt has been made to formally contact me," Landis told the paper via e-mail. "It appears to be another case of fabricated evidence by a French lab who is still upset a United States citizen believed he should have the right to face his accusers and defend himself."