The U.S. Department of Justice is looking into state-sponsored doping by "dozens" of Russian athletes, The New York Times reported Tuesday, citing sources familiar with the case.
Those sources believe prosecutors are seeking conspiracy and fraud charges, the newspaper said. The report added the U.S. attorney's office for the Eastern District of New York is investigating various Russian officials, athletes or coaches who may have benefited from doping.
A November World Anti-Doping Agency report accused Russia of state-sponsored doping. The country's sports ministry said in a statement last week that "we have never claimed that we do not have doping problems and we acknowledge that changes are needed."
Cases against foreigners living outside of the country have been allowed if they have a connection to the U.S., the Times said.
The DOJ and the Russian government press office did not immediately respond to CNBC's requests for comment.