PARIS - Lance Armstrong denied a report Tuesday in the French sports daily L'Equipe that said the seven-time Tour de France champion used the performance-enhancing drug EPO to help win his first Tour in 1999.

"Unfortunately, the witch hunt (Tuesday') tomorrow's article is nothing short of tabloid journalism," Armstrong wrote on his Web site Monday night. "I will simply restate what I have said many times: I have never taken performance-enhancing drugs."

L'Equipe devoted four pages to its allegations, with the front-page headline "The Armstrong Lie." The paper said that signs of EPO use were found in Armstrong's urine six times during the 1999 race.

The governing body of world cycling did not begin using a urine test for EPO until 2001. For years, it had been impossible to detect the drug, called erythropoietin, which builds endurance by boosting the production of oxygen-rich red blood cells.

The tests on 1999 urine samples were done last year to help scientists improve their detection methods, the paper said.

L'Equipe said it matched anonymous urine samples from that Tour with medical statements signed by doctors, claiming that there were "characteristic, undeniable and consequent" signs of EPO in Armstrong's urine tests.

The newspaper said the tests were carried out by the national anti-doping laboratory in Chatenay-Malabry. An official at the lab declined to comment on the report.

L'Equipe, whose parent company is closely linked to the Tour, has frequently raised questions about how Armstrong could have made his spectacular comeback from testicular cancer without using performance enhancers. L'Equipe is owned by the Amaury Group whose subsidiary, Amaury Sport Organization, organizes the Tour de France and other sporting events.

A former L'Equipe journalist, Pierre Ballester, co-authored a book published last year that contained doping allegations against Armstrong.

In the book, "L.A. Confidential, the Secrets of Lance Armstrong," one of the cyclist's former assistants claimed that Armstrong once asked her to dispose of used syringes and give him makeup to conceal needle marks on his arms.

Armstrong retired from cycling after winning his record seventh straight Tour victory last month.