MOSCOW -- The Russian anti-doping agency said it plans to file doping cases against 33 athletes from a range of sports for using banned treatments from a doctor.
The agency, known as RUSADA, said the suspects who used the unspecified "banned method" include 19 track and field competitors -- two of them athletes with disabilities -- as well as five cyclists, a boxer and a gymnast.
The athletes haven't been named, but RUSADA deputy CEO Margarita Pakhnotskaya told The Associated Press some were national team members. They are suspected of receiving infusions of various substances.
Under international anti-doping rules, athletes need a valid medical reason for any intravenous infusion over 100 milliliters in 12 hours, even if the substance itself isn't ordinarily a banned drug. At least 11 of the athletes were underage at the time, Pakhnotskaya added.
All of them are from a sports academy in Chuvashia in central Russia, a region known for its track and field squads.
RUSADA said it reported a sports doctor to law enforcement under a Russian law against inducing athletes to dope. However, RUSADA said the case was closed after authorities ruled her conduct wasn't a crime because she hadn't been officially informed the treatment was banned.