After new revelations, WADA to probe claims of Sochi doping

MONTREAL (AP) — The World Anti-Doping Agency will immediately begin an investigation into newly revealed details about Russian doping at the Sochi Olympics.

In a news release Tuesday, agency president Craig Reedie says it was surprising to hear the new claims so long after an independent commission appointed by WADA finished its report about widespread doping on the country's track team.

In an interview with "60 Minutes" that aired Sunday, whistleblower Vitaly Stepanov said the former director of the suspended Moscow anti-doping lab told him four Russian gold medalists at the Sochi Games had used steroids.

Reedie said the independent commission interviewed the lab director, Grigory Rodchenkov, but he did not reveal information about the Sochi Games.

Athletes and others have long been pushing WADA to expand its probe beyond track and field.